Career
A Paraguayan international on more than 100 occasions, he represented the nation in three World Cups and six Copa América tournaments. Born in Cerrito, Ñeembucú Department, Villar started his career at Club Sol de América where he was coached by legendary Ever Hugo Almeida, also a goalkeeper, as the side also included another famed player in that position as the keepers" coach, Modesto Sandoval. In January 2008, terms were agreed upon between Newell"s and Real Valladolid of Spain for Villar"s transfer, effective in the summer.
On 14 July, he was officially presented by his new team
Due to starter Sergio Asenjo"s injury, he was able to appear in 15 Louisiana Liga matches in his first year. During the 2009-2010 season, Villar constantly battled for first-choice status with Jacobo, featuring in 23 games as the Castile and León side returned to Segunda División after a three-year stay.
He was released in June 2011 at the age of 34, mainly due to his high salary. The following month Villar moved back to Argentina, signing a three-year deal with Estudiantes.
In 2013 he returned to his homeland, joining Club Nacional.
Villar represented Paraguay at the 1997 Fédération internationale de football association World Youth Championship, and received his first cap for the full side two years later. He also appeared with the under-23 team at the 2000 CONMEBOL Men Pre-Olympic Tournament, making four appearances. Having been selected for the 2002 Fédération internationale de football association World Cup, backing up legendary José Luis Chilavert, Villar was already a starter in the 2006 edition, but had a brief participation: during the first seven minutes of the opener against England, just after Carlos Gamarra"s own goal, he got injured, was replaced by Aldo Bobadilla and subsequently sidelined for the rest of the tournament, in which the national team was eliminated in the first round.
In the 2010 World Cup in South Africa Villar played all the matches for the eventual quarterfinalists, only conceding two goals, against Italy in the group stage (1–1) and Spain in the last-eight match (0–1, also saving a Xabi Alonso penalty), and was selected as team captain.
During the 2011 Copa América he was again first-choice and captain, and helped his team reach the final, notably saving a penalty in the quarter-finals shootout against Brazil (0–0 after 120 minutes). He was named the Best Goalkeeper for his displays during the competition, keeping clean sheets in three games.
Villar played four games in the 2015 Copa América, helping Paraguay to the fourth place in Chile. Club International Individual.