United could have edged back in front within three minutes after Welbeck got his studs to a viciously - whipped ball in from the left by Robin van Persie .
Diego Lopez got a hand to it and pushed it behind for a corner .
United could have edged back in front within three minutes after Welbeck got his studs to a viciously - whipped ball in from the left by Robin van Persie , but Diego Lopez got a hand to it and pushed it behind for a corner .