Paulo César da Silva Barrios (born 1 February 1980 in Asunción) is a Paraguayan footballer who plays for Libertad in Paraguay, as a centre back.
He has previously played top-flight football in Paraguay, Italy, Argentina, England and Spain.
He has played for the Paraguay national football team since 2000 and is their most-capped player of all time, earning over 100 caps. He played at two World Cups and three Copa América tournaments, helping his country finish as runners-up in the 2011 Copa América.
Da Silva started his career in the youth divisions of Atlántida Sport Club. Before joining Toluca, da Silva played for Perugia and Venezia of Italy, and Lanús of Argentina. He joined Toluca from Paraguayan club Libertad for the 2003 Apertura. Since making his debut, da Silva has been a mainstay in Toluca's defence, starting all but one game that he has played and eventually becoming the team's captain due to his leadership on the field. In 2007, he was chosen for the "Ideal Eleven" squad of South America and in 2008 he led Toluca to the Apertura 2008 title, being chosen as the best overall player of the tournament by the Mexican media.
On 13 July 2009, Da Silva joined English club Sunderland on a three-year deal. Manager Steve Bruce said "I'm delighted to have signed a player of Paulo's experience. He is captain of his country and has played at the highest level in South America, so will bring leadership qualities to our side." His arrival at the Stadium of Light was followed by a long and confusing period in regards to his visa application. Da Silva was granted a work permit to play in England almost immediately, but had to wait for over a month to get his visa before it was eventually granted on 12 August.
He made his debut on 24 August against Norwich City in the League Cup second round, playing the whole 90 minutes of a 4–1 away win. On 12 September he made his first Premier League appearance, replacing Steed Malbranque for the final ten minutes of a 4–1 home win over Hull City.
Da Silva was rotated throughout his first season at the club, but performed consistently when required. Manager Steve Bruce cited 'settlement' as the reason behind playing Da Silva in phases, stating he needed time to adjust to the English game and lifestyle. He was joined at the club by his international teammate Cristian Riveros in May 2010. Da Silva's second season at Sunderland saw him make just three appearances, only one as a starter. His last appearance for Sunderland came in their home defeat to Notts County in the FA Cup on 8 January 2011.
Da Silva joined Real Zaragoza from Sunderland on 31 January 2011 for an undisclosed fee, with his new club in 15th in La Liga at the time. They finished the season in 13th.
Da Silva re-joined Toluca on May 31, 2013 in a two-year loan deal from Pachuca.
On 11 May 2015, Toluca announced they had sign da Silva permanently.
On June 26, 2017, Da Silva returned to Paraguay to play for Club Libertad
Barely aged 14, da Silva was called up to the Paraguay U17 squad in 1994.
In 2000, da Silva represented Paraguay U23 at the 2000 CONMEBOL Men Pre-Olympic Tournament.
He played for Paraguay in 1997 and 1999 FIFA World Youth Championship, but missed the 2002 World Cup in Korea and Japan. However, he was named in the 23-man squad for the 2006 World Cup in Germany. He also played at the 2010 World Cup in South Africa, featuring in all five of Paraguay's games in their run to the quarter-finals, and provided an assist for Sunderland teammate Cristian Riveros in their 2–0 win against Slovakia in the group stages.Scores and results list Paraguay's goal tally first.
Primera División de Paraguay: 2002, 2003
CONCACAF Champions' Cup: 2003
Primera División de México: 2005 Apertura, 2008 Apertura
Campeón de Campeones: 2003, 2006
Chosen on the CONMEBOL Best Eleven team: 2007
Best player of the Primera División de México: 2008