Arsenal Football Club’s Theo Walcott could face another injury lay-off.

The England international started his first game of the season in the 3-1 win against Birmingham City, but he was forced off just before half-time with a knee injury.

"He suffers from his knee. We don't know yet if it is a ligament or just a knock, we have to assess that tomorrow," manager Arsene Wenger told Sky Sports.

"I do not believe he will be available for the UEFA Champions League game."

Get all the latest news on your club. Visit 360 Football, the best football news aggregator on the web!