Manchester City's Mario Balotelli (L) challenges Aston Villa's James Collins during their English Premier League soccer match at The City of Manchester Stadium in Manchester, northern England, December 28, 2010. REUTERS/Phil Noble (BRITAIN - Tags: SPORT SOCCER) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. NO USE WITH UNAUTHORIZED AUDIO, VIDEO, DATA, FIXTURE LISTS, CLUB/LEAGUE LOGOS OR "LIVE" SERVICES. ONLINE IN-MATCH USE LIMITED TO 45 IMAGES, NO VIDEO EMULATION. NO USE IN BETTING, GAMES OR SINGLE CLUB/LEAGUE/PLAYER PUBLICATIONS