Arsenal manager Arsene Wenger has revealed that Aaron Ramsey is likely to miss at least three weeks with a hamstring injury.

The Wales midfielder came off during the second-half of their Champions League victory over Bayern Munich on Tuesday night.

"He had a scan today but he's out. I believe he will be out until after the next international break," said Wenger.

Ramsey had scored his first Premier League League goal of the season during Saturday's 3-0 win over Watford.