Justo Wilmar Villar Viveros (born 30 June 1977) is a Paraguayan footballer who plays for Estudiantes de La Plata in Argentina as a goalkeeper.

A Paraguayan international on nearly 100 occasions, he represented the nation in three World Cups and five 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 2001, he moved to bigger club Club Libertad, where he was reunited with Sandoval; at the club, he won back-to-back national championships, in 2002 and 2003, signing the following year with Argentina's Newell's Old Boys.

As an undisputed starter, Villar helped Newell's to the 2004 Apertura championship, also being considered by the press as the Goalkeeper of the Year; previously, he had won the Paraguayan Footballer of the Year award (2004).

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 La Liga matches in his first year.

Aldo Antonio Bobadilla Ávalos (born 20 April 1976 in Pedro Juan Caballero) is a Paraguayan retired football goalkeeper.

Bobadilla started his career at Paraguayan club Cerro Porteño already in the junior league, he was trained by Modesto Sandoval that is how he got the skills to play in the pro team some years later, then moved to Gimnasia y Esgrima de La Plata of Argentina. He returned to Paraguay to play for Club Libertad until mid 2006, when he signed for Argentine Boca Juniors.

Though he started the last season as the first-choice goalkeeper for Boca Juniors, he lost his place to Caranta after his rival's good performances in friendly matches.

In early September 2007 he signed a contract with Colombian side Independiente Medellín helping the team overcome the problem they had in the previous season by being the team with the most goals scored against.

Early in 2011, Bobadilla signed a two-year contract with Club Olimpia of Asuncion.

Bobadilla was part of the Paraguayan national football team that competed in the 2006 FIFA World Cup. He went as a substitute and was not expected to play. However, Bobadilla had to replace starting goalkeeper Justo Villar after Villar's injury in the first match, against England.