Arsenal manager Arsene Wenger has admitted that he doesn't know who will be available for Tuesday's Champions League second leg against AC Milan because of a mounting injury crisis.

Abou Diaby, Kieran Gibbs and Yossi Benayoun all picked up problems during Saturday's 2-1 win at Liverpool, while Mikel Arteta was taken to hospital with a head injury.

"The bad news of the day is that Diaby is injured and did his hamstring," Wenger told the club's official website.

"Benayoun has a small hamstring problem, Gibbs has a problem.

"We look decimated after the game. I don't know who will be available on Tuesday night."

The Gunners will be looking to overturn a four-goal deficit when they host Milan at the Emirates Stadium next week.