A late bloomer, he played for seven clubs, mostly in the country's second and third divisions. At the age of 30, he reached the France national team for his sole cap.
Born in Angers, Savidan's first year of professional football was spent with Angers SCO, his hometown club. He attracted attention from LB Châteauroux and was transferred after two seasons: out of 20 games he only managed to score three goals as a substitute and, at the end of the year, was sold to AC Ajaccio.
Savidan would spend also only one year at his new team, before returning to former side Angers. For 2002–03 he was bought by AS Beauvais, and failed to score a single goal over the entire course of the campaign, moving to AS Angoulême subsequently. As the latter operated in the Championnat National, thus lacking professional status, the player would also work briefly as a waste collector and bartender; finished that season with his best individual effort at the time, 12 goals.
At age 26, Savidan signed with Valenciennes FC also in the third division. Mainly due to his impressive scoring rate, the side went straight into Ligue 1 in just two seasons. During the second campaign they were crowned league winners, and he finished joint-top scorer at 16.
In his first game in the top level, at AJ Auxerre on 5 August 2006 (aged 28), Savidan netted in a 1–1 draw. On 10 February of the following year he had an impressive performance, scoring four goals in a 5–2 away win against FC Nantes– he would finish the season as the competition's second top scorer, behind Pauleta.
Settled in Valenciennes, Savidan opened a restaurant called K9 (K for wife Karine, and 9 for his shirt number). However, he signed for Stade Malherbe Caen in summer 2008 for a reported fee of €5 million.
Savidan scored fourteen goals in 2008–09, but Caen was relegated to division two. Subsequently, he arranged a move to AS Monaco FC, also in the €5million region; however, a defect in his heart was detected upon his medical, and the 31-year-old ended his career on 4 July 2009 at the advice of the club's doctors.
In the fall of 2009, Savidan – who played ice hockey in his childhood – joined hometown club ASG Angers, serving as coach of the under-9 team.
Savidan did not receive any call-ups to represent France during his two-year stint in the top level at Valenciennes, where he displayed good form. However, on 13 November 2008, aged 30, he was picked to the national team by coach Raymond Domenech, who was impressed by the player's start to the 2008–09 season. He played the second half of the 0–0 home draw against Uruguay, on the 19th.Ligue 2: 2005–06
Ligue 2: Top scorer 2005–06
Championnat National: Top scorer 2004–05