Arsenal striker Nacho Monreal scored the winner against his former club . Angel di Maria was dismissed for dissent after pulling the referee 's shirt . Danny Welbeck opened the scoring and Wayne Rooney equalised but Welbeck 's finish earned him the plaudits .
Arsenal striker Danny Welbeck scored the winner against his former club . Angel di Maria was dismissed for dissent after pulling the referee 's shirt . Nacho Monreal opened the scoring and Wayne Rooney equalised but Welbeck 's finish earned him the plaudits .