It was after the full-time whistle and was an honest mistake so good on the Ref for not taking action.
Just watched the extended highlights again. When you look at who got the assists, the Walcott story gets even more remarkable. Code: # Scorer Assister 1 Walcott Arshavin 2 Giroud Walcott 3 Koscielny Walcott 4 Walcott Chamakh 5 Chamakh Arshavin 6 Walcott Arshavin 7 Chamakh Walcott Walcott: 3 goals, 3 assists Chamakh: 2 goals, 1 assist Arshavin: 3 assists Giroud: 1 goal Koscielny: 1 goal Two of Walcotts assists were from corners. Is this yet another skill he's added to his game?