As a junior Monfils compiled a singles win–loss record of 83–22, reaching the No. 1 junior combined world ranking in February 2004.
In 2004 he won the Boys' Singles titles at the Australian Open, the French Open and Wimbledon. He was crowned International Tennis Federation youth world champion.
In 2002, Monfils finished 24th at the Dutch Junior Open. In the same year, he won the German Junior Open (defeating Bayer). Monfils ended the year ranked the No. 4 junior in the world. He also represented France in the junior Davis Cup.
Monfils got off to a positive start in 2003 and earned his first career ATP point at the France Futures No. 13 by reaching the second round. He also reached the second round at France No. 14, Egypt No. 2, and Spain No. 28. In that year, he played a total of nine Futures events. This included a showing in the doubles final at Spain No. 27. In junior events, he was a semifinalist at Orange Bowl (losing to Marcos Baghdatis) and USTA International Winter Championships (losing to Rieschick). He reached the quarterfinals of the Australian Open juniors tournament (losing to Florin Mergea) and won the doubles title at the Victorian Junior Championships (with Josselin Ouanna). He was No. 21 in junior rankings at the end of the year.
In 2004, the French teenager finished as the world's no. 1 junior, winning the first three of four junior Grand Slam events (Australian Open, French Open, Wimbledon). He improved his ATP Entry Ranking by over 700 positions. In October, he made his ATP debut as a wildcard entrant at the Moselle Open in Metz and, after winning his first ATP match against Xavier Malisse, reached the quarterfinals in which he lost to countryman Richard Gasquet. He qualified for the Paris Masters and reached the second round, beating former Top 10 player Thomas Enqvist before falling to world No. 3 Lleyton Hewitt. He won junior titles at the Australian Open (defeating Ouanna), French Open (defeating Kuznetsov), and Wimbledon (defeating Kasiri). He did not drop a set in Australia and lost one set each at the French Open and Wimbledon. He reached the third round at the US Open (losing to Troicki). He also won the LTA International Junior Championship in Roehampton (defeating Murray). He was the runner-up at the Australian Hardcourt Junior Championships (losing to Zverev) and was 31–2 in junior events. In April, he reached his first career Futures final at Italy No. 4 (losing to Dlouhy). A week later, he won his first Futures title at Great Britain No. 1 (defeating Bogdanović). He reached the quarterfinals of the Grenoble Challenger. He went 14–6 in Futures and 3–5 in Challengers in 2004.
In doubles, Monfils reached the final at France No. 7 (with Ouanna). He reached the semifinals at the Australian Open and the quarterfinals at the French Open (with Ouanna).
In 2005, the young Frenchman made one of the biggest moves in the top 50 from the previous season, climbing 200 ranking spots. He finished the year as the no. 3 Frenchman (behind no. 16 Richard Gasquet, no. 26 Sébastien Grosjean) and captured his first ATP title, while reaching two additional finals. In the first six months, he won Challenger titles in Besançon, defeating Christophe Rochus, and Tunis (defeating Santoro), and also reached the fourth round at the Miami Masters (losing to Dominik Hrbatý) and a Grand Slam best third round appearance at Wimbledon (losing to Mario Ančić). He compiled a 10–14 record in ATP level play and 12–1 in Challengers through July.
In the last three months, he went 15–8, highlighted by his first ATP clay title at the Idea Prokom Open in Sopot defeating Florian Mayer in the final. Then he struggled with a 2–5 mark before reaching the final in two of the last three indoor tournaments of the season, both in his native country in Metz (losing to Ljubičić) and Lyon (losing to Roddick). He went 11–4 in tie-breaks and 1–2 vs. Top 10 opponents, defeating world no. 10 Gastón Gaudio in his first match of the season in Doha. He compiled records of 12–10 on hard courts, 6–7 on clay, 5–2 on carpet, and 2–3 on grass.
In his first tournament of 2006, in Doha, he reached the final, but lost in two sets to world No. 1 Roger Federer. In a surprising event in Las Vegas, there was a tennis paddle tournament held by the Tennis Channel. Monfils was given a wildcard into the doubles event, but became more interested and inquired about getting a singles wildcard into the main draw. However, he received an entry into the qualifying singles (which he won). Monfils competed in the main draw of this Paddle tennis tournament and surprised everyone when he ousted world No. 1 paddle tennis player Scott Freedman and eventually went on to win the whole tournament.
In May Monfils reached the semifinals of the Rome Masters, before losing to eventual champion Rafael Nadal in straight sets. En route to the semifinals, Monfils defeated former world No. 1 Andy Roddick. He then entered the Hamburg Masters event, where he lost in straight sets to fellow teenager Andy Murray in the first round. After that, he faced Murray once more, this time in the first round of the French Open. After a tough five–set battle, Monfils emerged victorious. Monfils then proceeded to play the Belgian Dick Norman in the second round. Once again, the match went to five sets, and Monfils got the better of his opponent. He then faced his toughest opponent yet, the American James Blake. Blake was the favourite for the win, as the eighth seed, while Monfils was seeded 25th. However, Monfils defeated Blake in another five-set match. Monfils described this run as a marathon. Blake said of Monfils that 'he was the fastest man on the tour'. The fourth round was Monfils' last, as he lost to Novak Djoković in straight sets.
As a result of his progress at the French Open, Monfils moved up five positions to reach a then career high of No. 23. This also made him the No. 1 player in France, two positions ahead of Sébastien Grosjean. Monfils then entered the Stella Artois Championships, where he won his first-round match against Jürgen Melzer. He then played the American Bobby Reynolds and won in straight sets. His third-round encounter with Ivan Ljubičić was the third time he faced the world No. 4. Monfils triumphed in straight sets. His quarterfinal draw was with James Blake, whom he had met earlier at the French Open. This time Blake succeeded. After having lost a set, Monfils retired as a result of a back injury. This injury effectively ruled him out of the Nottingham championships the following week.
At Wimbledon, Monfils suffered a surprising first-round exit when defeated by Igor Kunitsyn. Monfils won the first set, but ended up losing the next three.
At the Australian Open, Monfils lost to his compatriot Richard Gasquet in the third round in four sets. Monfils had a good run in Poertschach as a warm-up for the French Open, but lost in the final against Juan Mónaco of Argentina in straight sets. He lost in the third round of the French Open to David Nalbandian in a four-set match. At Wimbledon, Monfils reached the third round without dropping a set, where he lost to Nikolay Davydenko, the sixth seed, in straight sets. In July Monfils made it to the semifinals of the 2007 Legg Mason Tennis Classic, before losing to American John Isner in three tiebreaks. Monfils withdrew from the 2007 US Open with a hamstring injury. He also was forced to withdraw from the 2008 Australian Open due to the same injury.
In the French Open, Monfils reached a semifinals berth for the first time in any Grand Slam, becoming the first Frenchman in the semifinals since 2001. Monfils was defeated by top seed Roger Federer in four sets. A shoulder injury forced Monfils to withdraw from the Wimbledon shortly before he was due to play his first-round match. Monfils was selected to play in the Olympics in Beijing by France, losing to third seed Novak Djokovic in the quarterfinals. At the US Open, Monfils lost in the fourth round to Mardy Fish in straight sets, after having defeated former world No. 3 David Nalbandian again in straight sets. In the Thailand Open, Monfils reached the semifinals, losing to Jo-Wilfried Tsonga in two sets. Monfils lost in the final of the BA-CA Tennis Trophy in straight sets to Philipp Petzschner in the final.
Monfils played in Doha as his first tournament and caused a two-set upset in the quarterfinals against Nadal. Monfils lost to finalist Andy Roddick in three sets, being up a break in the first set and losing it. In the Australian Open, Monfils lost to fellow Frenchman Gilles Simon in the fourth round, retiring due to a wrist injury. At the Abierto Mexicano Telcel, Monfils lost in the final to Nicolás Almagro. Monfils competed at the Monte Carlo Masters, losing in the first round to Janko Tipsarević in straight sets.
His recent knee injury, caused by Osgood-Schlatter disease, resulted in his withdrawal from the Italian Open and the Madrid Masters. However, he competed at the French Open, and easily won his first-round match against Bobby Reynolds. He then completed another straight-set victory in the second round by overcoming Victor Crivoi. In the third round, Monfils beat Jürgen Melzer in four sets. Against Melzer, Monfils made one of the most spectacular plays of the tournament, hitting a diving shot back to Melzer, sliding to save another point of Melzer and then putting the point away. He then played a much-anticipated fourth-round match against Andy Roddick, who made 28 unforced errors and allowed Monfils to win in straight sets. Monfils lost, as in the previous year, to Roger Federer, this time in the quarterfinals.
Monfils withdrew from the Wimbledon Championships due to a wrist injury. Monfils returned to competition at the Montreal Masters. In his first-round match, he defeated Marat Safin. He lost to qualifier Juan Carlos Ferrero in his second match, ending his Master Series campaign. In the US Open, he lost to world No. 3 Rafael Nadal in the fourth round in four sets. Monfils won the Open de Moselle held in Metz, France as the top seed. He faced Philipp Kohlschreiber in the final and won in two sets. Monfils made the quarterfinals at the Malaysian Open held in Kuala Lumpur, despite suffering from jetlag, losing in straight sets to Nikolay Davydenko.
At the Japan Open, Monfils reached the semifinal stage, losing to eventual champion Jo-Wilfried Tsonga. His next tournament was the Shanghai Masters, losing against Ivan Ljubičić in the third round. He lost the first set and then was forced to retire with a back injury. At the Paris Masters, Monfils was defeated in the final by Novak Djokovic.
Monfils began his season at the Brisbane International, where he was seeded third. He lost to defending champion, Czech Radek Štěpánek in the semifinals. He withdrew from the Medibank International in Sydney, Australia, citing a shoulder injury. At the Australian Open, Monfils lost in the round of 32 to John Isner in four sets. Monfils was the first seed at the SA Tennis Open, where he lost in the semifinals to Feliciano López. He then played in the ABN AMRO World Tennis Tournament in Rotterdam, where he fell in the quarterfinals to the eventual runner-up, Russian Mikhail Youzhny in three sets. Monfils was the third seed at the 2010 Open 13 in Marseille, France where, in the quarterfinals, he lost to Julien Benneteau in straight sets.
At the BNP Paribas Open, seeded 12th, after receiving a bye in the first round, Monfils lost to Simon Greul in three sets. Monfils withdrew from three consecutive Masters 1000 events, the Sony Ericsson Open, the Monte-Carlo Masters, and the Rome Masters. He was set to return at the Estoril Open and receive a wildcard, but withdrew due to a stomach injury. He finally made his return at the Madrid Open and reach the quarterfinals without losing a set, but there he lost to the third seed Rafael Nadal. He then played at the Open de Nice Côte d'Azur in Nice, France, where he lost in the quarterfinals to Potito Starace. His next tournament was the 2010 French Open, where he had reached the quarterfinals the year before. He was up two sets and a break, before being upset by Fabio Fognini in a match over two days.
Starting his grass-court season, Monfils lost in the second round at the Aegon Championships to Rainer Schüttler in three sets. Playing at Wimbledon for the first time since 2007, he won his first match in straight sets against Leonardo Mayer, and his second round match in four sets against Karol Beck. He eventually lost to grass-court specialist and former Wimbledon champion Lleyton Hewitt in straight sets. Wimbledon is the only Grand Slam tournament in which Monfils has yet to pass the third round. At the MercedesCup, he reached his first final of the year by beating Daniel Gimeno-Traver in three sets. He was forced to retire in the final against Albert Montañés.
At the US Open, he lost to Novak Djokovic in three sets in windy conditions. It was his first quarterfinals at a major besides the French Open. He is also the first Frenchman to make the US Open quarterfinals since Arnaud Clément in 2000. Monfils was runner-up at the Rakuten Japan Open, losing to Rafael Nadal in two sets. At the Open de Sud, Monfils won his third tournament, defeating Ivan Ljubičić in three sets. Monfils was seeded 12th in the BNP Paribas Masters, and successfully reached the final the second consecutive year, and this time also scoring three Top 10 wins (Fernando Verdasco in third round, Andy Murray in quarterfinals, and Roger Federer in semifinals) en route to the final where he lost to Robin Söderling.
Monfils started 2011 with the AAMI Kooyong Classic, where, in the final, he lost to Australian former world No. 1 Lleyton Hewitt. Monfils was seeded 12th in the 2011 Australian Open, where he was defeated in the third round by Stanislas Wawrinka of Switzerland. Next, Monfils played the SAP Open. He was able to reach the semifinals, before he had to withdraw with a left wrist injury that had been affecting him since January.
In the French Open, Monfils defeated seventh seed David Ferrer in five sets to reach the quarterfinals. In the quarterfinals, he lost to Roger Federer in straight sets. Monfils entered Wimbledon as the ninth seed. He defeated Matthias Bachinger and Grega Žemlja before falling in the third round to Łukasz Kubot of Poland in four sets.
At the Legg Mason Tennis Classic in Washington, D.C., he reached the finals with victories over Ryan Sweeting, Dmitry Tursunov, Janko Tipsarević, and John Isner. In the final, he lost in straight sets to Radek Štěpánek. He reached the quarterfinals of both the Rogers Cup and the Cincinnati Masters, where he lost to Novak Djokovic. In July, he reached his career-high ranking of world No. 4. At the US Open, he lost in the second round to Juan Carlos Ferrero after a hard-fought match five set match. Monfils then won his fourth ATP career title in October at the Stockholm Open by beating Jarkko Nieminen in the final. It was Nieminen's 11th ATP-level career final, and Monfils' 15th.
Monfils began 2012 reaching the final of the Qatar Open. On his way to the final, he beat Rui Machado, Benjamin Becker, Viktor Troicki, and Rafael Nadal. In the final, Monfils faced Jo-Wilfried Tsonga, who had received a walkover after Roger Federer withdrew from the tournament due to a back problem. Monfils proceeded to lose the final in two sets. At the 2012 Australian Open, Monfils progressed to the third round before bowing out to Mikhail Kukushkin in five sets. Monfils was suffering from a back injury he received in the previous round. In his next tournament at Montpellier. Monfils reached the final, losing to Tomáš Berdych in three sets. This brought his finals record to just 4 titles out of 17 finals.
He reached the third round in Madrid, again losing to Berdych. He did not play on tour after Nice from May to September due to a knee injury. The comeback came in September in Metz, where he reached the quarterfinals, but lost to Andreas Seppi in three sets. After 2 more tournaments, Monfils withdrew from the Rakuten Japan Open Tennis Championships in October citing pain in his right knee and ended his season early.
Monfils attempted another comeback with the beginning of the 2013 season in Doha, where he was able to reach the quarterfinals. He reached the semifinals in Auckland, being eliminated by David Ferrer. He made it to the third round of the 2013 Australian Open, but was defeated there by compatriot Gilles Simon.
He then played in Montpellier, where he was defeated in the second round by Richard Gasquet. He received a wild card into Rotterdam, but was defeated in the first round by Juan Martín del Potro. He received a wild card for the French Open after a good clay season with a win at the Bordeaux Challenger and a final at the Nice ATP tournament, he upset Berdych in the first round of the French Open, who was seeded fifth. He continued his quest by defeating Gulbis in round two. In the third round he faced Tommy Robredo. Monfils won the first 2 sets, but lost the last 3. During the match, Monfils had 4 match points, but didn't win any of these. Monfils reached the finals in Winston-Salem, but bowed out to Austria's Jurgen Melzer in the second set due to an unspecified injury, securing the championship for Melzer. Just three days later, on 27 August, Monfils defeated 105th-ranked Adrian Unger of Romania in the first round of the US Open but lost to John Isner in the second round.
At the Shanghai Masters in October, Monfils upset fifth seed Roger Federer in the third round before losing to world No. 2, defending and eventual champion Novak Djokovic in the quarterfinals.
Monfils reached his 3rd final in Doha and lost to Nadal in three sets. He was once again beaten by Rafael Nadal in the third round of the 2014 Australian Open.
Monfils won Montpellier, defeating Richard Gasquet. He hurt his wrist in a match against Dimitrov and retired until the French Open, where he has made it to the quarterfinal before losing to Andy Murray.
At the US Open, Monfils reached the quarterfinals for a second time, and just narrowly missed reaching his second Grand Slam semi-final when he lost to Roger Federer in five sets despite leading by two sets to love and holding two match points against his serve in the fourth set.
At the Davis Cup final in Lille, he beat Roger Federer in straight sets in the 2nd match, however France went on to become the tournament runners-up, losing 3–1 to Switzerland.
Monfils played his first tournament at the Australian Open. He defeated Lucas Pouille in 5 sets in the first round before being ousted against Jerzy Janowicz in another five setter.
He reached the final of the Open 13 in Marseille, that of which saw him lose to Gilles Simon.
For his season debut on clay in the Monte-Carlo Masters, he successively beat Andrey Kuznetsov, Roger Federer and Grigor Dimitrov but lost to Tomáš Berdych in the semifinals.
In the French Open, he defeated Édouard Roger-Vasselin in the first round and Diego Schwartzman in the second round in 5 sets but his best performance remains the third round match against Pablo Cuevas. As Cuevas lead two sets to one and was serving at 4–1 in the fourth set, he faced a different Monfils, galvanized by the crowd, and lost to Monfils in the fifth. Monfils lost in the round of sixteen to Roger Federer in four sets.
The grass season started well as he reached the semifinals of the Mercedes Cup in Suttgart, losing only to Rafael Nadal. Unfortunately he injured himself in the quarter finals of Halle and could not finish his match against Andreas Seppi. He was however able to participate in Wimbledon defeating Pablo Carreño-Busta and Adrian Mannarino but losing again to Gilles Simon in the third round in five sets.
Due to injuries, his performance was poor over the next few months in America. He retired in the middle of his first match of the US Open against Illya Marchenko. He also announced the end of his collaboration with his coach Jan de Witt, who was later replaced by Tillstrom.
His last tournament of the year was the Paris Masters. In the first round he was knocked out against compatriot Benoit Paire after leading by one set and 4–0. He said after the match he got disturbed when the crowd started to whistle at his opponent. From his own words, Monfils defined 2015 as a "year of regrets" where he "regressed, wasted a year because of certain choices".
Monfils started the 2016 season by entering the 2016 Australian Open where he was seeded 23rd, Monfils took advantage of a draw which opened up in his section to reach the singles quarterfinals of the Australian Open for the first time. There, he lost to the 13th seed Milos Raonic in four sets. His good form continued going into the Rotterdam Open, where he reached his first final of 2016, defeating Ernests Gulbis, Borna Ćorić, Alexander Zverev and Philipp Kohlschreiber en route before losing to Martin Kližan in three sets.
In March, Monfils reached the singles quarterfinals of two ATP World Tour Masters 1000 tournaments – Indian Wells and Miami, losing to Raonic and Nishikori respectively. Monfils reached a third career ATP World Tour Masters 1000 singles final in his career and his second final of 2016 at the Monte Carlo, which includes defeating countryman and world No. 9 Jo-Wilfried Tsonga in the semifinals, before losing in the final to the eight-time Monte Carlo Masters champion Rafael Nadal in three sets. After a very good week in Monte Carlo, Monfils was looking to replicate this form at the next two clay-court ATP World Tour Masters 1000 tournaments in Madrid and Rome. However, he caught a viral infection during his stay in Madrid, and as a result, he lost in the second round to Pablo Cuevas, then in the following week, he lost in the first round at Rome to Thomaz Bellucci.
Monfils then withdrew from the French Open, courtesy of the same viral infection that he caught in Madrid. Monfils, in an attempt to recover, wouldn't play again until Wimbledon where, despite still feeling sick, he lost his first-round match with compatriot Jérémy Chardy in five sets.
Monfils earned his first ever ATP World Tour 500 Series singles title in July, in the 2nd week after Wimbledon, defeating Croatian Ivo Karlović in the final in three sets on the hard courts of the Citi Open in Washington, D.C. after fighting from a set and a break down with Karlović serving for the championship in the second set, and moments later, saving a championship point in the tiebreak. The win was Monfils's first ATP World Tour singles title in over two years, although he reached at least one final every year since 2005. All of his previous ATP World Tour singles titles came under the ATP World Tour 250 Series category, despite the fact that he reached at least 3 finals each across all categories previously except Grand Slams and Tour finals.
The following week, Monfils reached the semifinals of the Rogers Cup after dispatching 2016 Wimbledon singles finalist Milos Raonic in the quarterfinals, to set up a tie against world No. 1 Novak Djokovic, to whom he lost in straight sets, ending his career-best win streak of 9 consecutive matches.
In the second week of August, since Richard Gasquet withdrew from the 2016 Olympics tennis tournament because of his back injury, he is replaced by Monfils in the men's doubles draw, who would pair up with Jo-Wilfried Tsonga. In the men's singles draw of the same tournament, Monfils reached the quarterfinals and lost to eventual Bronze medalist Kei Nishikori, despite having 3 match point chances in the deciding set.
In late August, Monfils entered the US Open seeded 10th and reached the semifinals without dropping a set, defeating prominent past and present players on the tour Gilles Müller, Jan Šátral, Nicolás Almagro, Marcos Baghdatis and Lucas Pouille en route. He eventually lost a controversial match to Djokovic in four sets.
In the first week of October, Monfils entered and was seeded 2nd at the Japan Open, another ATP World Tour 500 Series, where he also reached the semifinals without dropping a set, after beating Ivo Karlović again in the quarterfinals to set up a tie against eventual champion Nick Kyrgios, whom he lost to in 2 very competitive and entertaining sets. Monfils then entered the Shanghai Masters seeded 6th and received a bye into the second round, where he defeated Kevin Anderson in straight sets. In the third round he faced David Goffin, and despite winning the first set and leading by a double break in the second set serving at 4–1, he lost the next 5 games and was forced to play a decider, where he lost 2–6. However, the run guaranteed him to match his career high ranking of No. 7 once again.
The following week Monfils entered the Stockholm Open, where he was seeded 1st. After receiving a first-round bye, he was upset by Gastão Elias in straight sets. The loss resulted in his ranking dropping down one spot, back to No. 8.
Despite missing the penultimate week of the 2016 season, Monfils became the sixth person to qualify for the 2016 ATP World Tour Finals. This year marked his debut at the season-ending event. After falling to Raonic 6–3, 6–4 and losing a 3-set match to Dominic Thiem, Monfils withdrew from the tournament with an injury. Goffin was brought in to replace Monfils for one match.
Monfils is usually described as a baseliner who uses placement and consistency to beat his opponents. Monfils is well known for his athleticism and his court coverage, regularly using slides to retrieve balls, even on hard courts. His ability to go from defense to offense quickly can take his opponents by surprise. Monfils occasionally demonstrates that he is capable of generating tremendous pace on his groundstrokes off both wings, especially his forehand that can reach 120 mph. He has a reputation for showmanship and high-risk shotmaking throughout his career. Despite his showmanship, he is one of the most humble players on tour and showed great sportsmanship throughout his career, as evident in his interviews and on-court actions.
During his own service games, he tends to go for an ace or a one-two combination to finish off the points early. He is also known for dancing to celebrate victories in the past. He uses a semi-western grip forehand and a combination of continental/semi-western on his backhand. Monfils possesses a strong, accurate serve capable of reaching mid-140s (mph), although his main focus is on consistency and placement, sometimes at the expense of power.
Monfils was sponsored by Nike for clothes and shoes but changed to K-Swiss in 2010. In 2013 he switched to ASICS for clothes and shoes. Monfils was sponsored by Head for racquets but changed to Prince in 2009 and Wilson in 2012. His current string of choice is the Luxilon Big Banger ALU Power 16L String.
Gaël is nicknamed "La Monf", or occasionally "Sliderman" due to his unusual sliding technique, especially on clay surfaces. He is of French-Caribbean heritage: his father, Rufin, a former football player employed as an agent for France Telecom, comes from the island of Guadeloupe. His mother, Sylvette, comes from the nearby island of Martinique and is a nurse. He has a younger brother, Daryl, who plays tennis. Gaël and Daryl played doubles together in the 2012 Open Sud de France, losing in the first round.
Monfils considers Arthur Ashe to be his favorite player. He is fond of listening to music, particularly R&B. If he did not play tennis, he would play basketball. He is a huge fan of the NBA's Denver Nuggets and his favorite basketball player is Carmelo Anthony. His best friends in the locker room are countrymen Richard Gasquet, Gilles Simon and Jo-Wilfried Tsonga in addition to Stanislas Wawrinka and, most recently, Nick Kyrgios.
He was coached by countryman and former ATP pro Thierry Champion (since September 2004) but they parted company in September 2006. Nevertheless, Monfils's fitness trainer is still Rémi Barbarin. Monfils announced a partnership with a new coach, Tarik Benhabiles, in May 2007. However, for the 2008 season, Monfils hired Roger Rasheed as his coach. In 2011, Monfils parted ways with Rasheed and announced that his fitness coach, Patrick Chamagne would take the reins as his new full-time coach. That lasted until 2013. As of the 2015 French Open, Monfils shares coach Jan De Witt with fellow countryman Gilles Simon. On 15 November 2012, Monfils split with his coach.
Monfils appeared in the music video for "Hello" by Martin Solveig and Dragonette.
Monfils was considered an athletics prodigy at school and won the French under-13 and under-14 100m championships. It was only his love for tennis that stopped him going on to compete at a higher level. His coach is on record as saying that Monfils could have made the Olympic 100m final such was his talent.
Current through 2017 Australian Open.