Thierry Henry is rated as doubtful ahead of Arsenal's crucial clash against Manchester United. The free-scoring Frenchman has still not fully recovered from the foot injury that kept him out of the Gunners' mid-week European clash against Hamburg.

The London team have other injury concerns with Robin Van Persie also uncertain for Sunday's match with a hip injury. However, Kolo Touré's injured hip, which caused him to leave the field against Hamburg.

Apart from a hip epidemic troubling him, Wenger will have to decide whether to stick with Thomas Rosicky, who scored a screamer on Thursday. Freddie Ljungberg is ready to replace him having been rested for the Champions League.

United, meanwhile, will be without Ryan Giggs following his hamstring injury, but will be boosted by the return of Christiano Ronaldo, who is back after suspension.