Sunderland substitute Ji Dong-won blew the Barclays Premier League title race wide open once again with a last-gasp goal to earn a 1-0 win against leaders Manchester City.
The South Korea international struck in the fourth minute of injury time to condemn City to defeat after the injury-hit Black Cats had staged a determined rearguard action.
Edin Dzeko and substitute Micah Richards had earlier both hit the bar and Sergio Aguero was denied by keeper Simon Mignolet, but Sunderland duo Nicklas Bendtner and Stephane Sessegnon had passed up glorious opportunities at the other end.
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