Kevin De Bruyne struck in the 79th minute to spare the blushes of Manchester City and earn them a hard-fought 2-1 victory in a rip-roaring FA Cup fourth-round tie at Leyton Orient.
The League One side went ahead in remarkable fashion after 16 minutes when a 40-yard lob by Tottenham loanee Jamie Donley hit City goalkeeper Stefan Ortega and went in to send Brisbane Road into pandemonium.
Pep Guardiola had watched City get thumped 5-1 at Arsenal last Sunday and would have feared more London woe, but substitute Abdukodir Khusanov deflected in Rico Lewis' strike to level after 56 minutes.
De Bruyne was brought on soon after and poked home with 11 minutes left to break the hearts of the O's and their Manchester United-supporting boss Richie Wellens, as the Premier League champions progressed into round five.
City are in the hat for the FA Cup fifth round draw, which is on Monday evening.
