Arsenal came from two goals down to beat Aston Villa 3-2 at Emirates Stadium and book their place in the FA Cup fifth round.
Richard Dunne and Darren Bent had put the visitors in command at the break.
However, the Gunners fought back through a penalty from captain Robin van Persie before Theo Walcott levelled and then another spot-kick from their skipper sent Arsene Wenger's men through to a last-16 tie against Sunderland or Middlesbrough.
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