Sunderland were too casual with the ball and were punished when Giroud 's striker instinct poached a back pass and sent it past Mannone from a difficult angle .
Sunderland must have been saving themselves for the trip to Wembley .
Sunderland , who must have been saving themselves for the trip to Wembley , were too casual with the ball and were punished when Giroud 's striker instinct poached a back pass and sent it past Mannone from a difficult angle .