Arsenal defender Bacary Sagna has been ruled out for at least three weeks with an ankle injury.

The right-back was substituted late on in the 2-1 defeat at Chelsea last Sunday, not long after scoring the opening goal.

The injury means that he will miss both legs of the Champions League semi-final against Liverpool, as well the vital Premier League clashes against the Merseysiders and Manchester United.

Emmanuel Eboue and Justin Hoyte are the most experienced dedicated right-backs in the squad after Sagna. Captain William Gallas played at full-back during his time at Chelsea, but his frustration at being played there was a factor in his move away from Stamford Bridge.

Manager Arsene Wenger said: "He has an ankle injury and the first news that we have is that he could be out for quite a while.

"I don't know [exactly] how long he will be out but I feel it will be three weeks at least. Five is the [worst case scenario].

"I have seen the injury again on tape. He wanted to kick the ball out and he twisted his ankle. That made it a bad injury."

Eurosport