Arsenal striker Robin van Persie has hailed a "crazy" second half as his side came from 2-0 down to beat Aston Villa 3-2 in the FA Cup fourth round.
The Dutchman's two penalties, along with Theo Walcott's goal, saw Arsenal turn around their half-time deficit to book a place in the fifth round.
"If you are 2-0 behind then it's always going to be a hard task but a crazy 16 minutes in the second half changed the game," he told ESPN.
"We worked hard and got the win which is vital."
The Gunners will travel to either Sunderland or Middlesbrough in the next round.
