Arsenal midfielder Abou Diaby is convinced Manchester United are off form and are there for the taking tomorrow night.

He said: "The first thing to say is that United are a great team. Whatever their form is like, they are still packed with great players who can make the difference at any time.

"However, they are not in their best form - maybe it's an opportunity for us to make the most of it and profit from it.

"That's not the main thing, though. We will concentrate on our game knowing that if we play we have a good chance."