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Jon Super, Associated Press
Manchester City's Yaya Toure, centre right, celebrates with teammate David Silva after scoring against Liverpool during their English Premier League soccer match at The Etihad Stadium, Manchester, England, Tuesday Jan. 3, 2012.

LONDON — Taking a break from their Premier League title battle, the two Manchester clubs meet in the FA Cup on Sunday with United desperate to avenge a recent trouncing by City that signified to some a shifting of English football's balance of power.

City fans will have Oct. 23, 2011 etched in their memory for years to come. That was the day the blue half of Manchester celebrated a 6-1 league victory at Old Trafford that underlined the team's emergence as a genuine force for the first time in a generation.

United has had to wait 11 weeks for payback, and will also be keen to exact revenge following a 1-0 loss to its neighbor in last season's FA Cup semifinal at Wembley.

City went on to win the final to end the club's 35-year trophy drought.