When I went to Old Trafford as a player, whether it was with Leicester, Birmingham or Blackburn, we always set ourselves up to try to stop United.
In training matches where we prepared for the game, and the onslaught we would face, we would sometimes play with eight outfield players against 12 or 13 on the other team. We would be in two banks of four, and they would try to score. We sometimes went 40 or 50 minutes without conceding a goal because, if you are strong in your shape, then you are hard to break down.
Arsenal were the complete opposite on Saturday. The main reason for that was their formation. It just did not suit the team that Wenger picked.
