Club Universidad de Chile is a professional football club based in Santiago, Chile, that plays in the Primera División. The club was founded on May 24, 1927. Universidad de Chile is one of the most successful and popular football clubs in Chile, having won the league title 18 times. In the last 10 years, the team has been crowned champion six times, including their undefeated run to the 2011 Copa Sudamericana title. The team has been throughout its history associated with the blue colour, also present on the logo, which was officially adopted in 1943. The club rivalries are with Colo-Colo and Universidad Católica, with whom they regularly contest the Santiago derbies known as Clásicos. Despite not owning its stadium, the club usually plays its home games at the Estadio Nacional Julio Martínez Prádanos, in the commune of Ñuñoa in Santiago. The Estadio Nacional's modernization process, forced the team to play home games in various stadiums across Chile in 2010. Universidad de Chile made a return to the Estadio Nacional on August 2010 against Guadalajara of Mexico during the 2010 Copa Libertadores semi-finals. Universidad de Chile was the champion of the Copa Sudamericana 2011 (the first international title of its history). In this tournament, the club had an excellent performance: wasn't defeated, won all their matches in Chile and had the top scorer of the tournament's history (Eduardo Vargas). Universidad de Chile has reached semi-finals in the Copa Libertadores four times (years 1970, 1996, 2010 and 2012).