Arsenal boss Arsene Wenger reckons even if Manchester United win everything this season, it will not beat Arsenal's 2004 Invincibles.

He said: "To win five trophies would be something very special, but I don't think it is a bigger achievement than going through a whole season unbeaten.

"It is not impossible for them to win five trophies but I don't think they will because the schedule at the end of the season is so tight."