"It doesn't look good for Sunday. It is still the foot. He has not recovered from it," Arsenal coach Arsene Wenger was quoted as saying by the club's official website on Thursday.

"On Sunday there is just a little chance he will play - 10 or 15 per cent," the French tactician added.

The French international striker missed Arsenal's 2-1 UEFA Champions League win over Germany's Hamburg because of the foot injury and his recovery has taken longer than expected.

Wenger suffered another blow with the news that Dutch striker Robin van Persie was injured in the UCL tie.

"Van Persie is injured as well. He injured his hip when he blocked his leg in German grass. He is having a scan."

The only good news is that Ivorian defender Kolo Toure has been passed fit to participate in the anticipating encounter against Premiership leaders United.

"Kolo Toure will have no problem to play on Sunday," Wenger said.