Pro Evolution Soccer 2011 (officially abbreviated as PES 2011 and known as World Soccer: Winning Eleven 2011 in Japan) is a football video game in the PES series, developed and published by Konami with production assistance from the Blue Sky Team. The game was announced on 9 February 2010 and released on 30 September 2010 for PC, PS3, and Xbox 360, aiming to compete with the FIFA series. However, the UK version of the game was released on 8 October 2010. Both the UEFA Champions League and UEFA Europa League were featured in the game, as in the previous year, and for the first time, the Copa Libertadores was fully licensed.