Arsenal boss Arsene Wenger branded the Old Trafford pitch "a disgrace" after his team was thrashed 4-0 by Manchester United in last night's FA Cup meeting.

"The groundsman had as bad a day as us," he said. "You will see us in a different shape when we come back and a on different pitch.

"The pitch is a disgrace. You have players worth £20-25million and you cannot play a pass without it bouncing."