City's Wembley dream turned into a nightmare as Wigan substitute Ben Watson grabbed a late, late winner to stun Roberto Mancini's men.
The Blues rarely got to grips with their tenth FA Cup Final and finished with ten men as Pablo Zabaleta was sent off for a second yellow card seven minutes from time.
Mancini was chasing his third trophy in as many seasons - and City's second FA Cup in three years - but too many of his players failed to reproduce the form that swept them through earlier rounds.
The teams are separated by 16 places and 40 points in the Premier League, but City found themselves on the wrong end of the biggest Final upset since Wimbledon beat Liverpool in 1988.Read full match report
FA Cup with Budweiser
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