Former Arsenal fullback Lee Dixon says skipper William Gallas must take responsibility for the club's sudden slide.

Dixon points to Gallas' meltdown at Birmingham City as one example of where the Frenchman's leadership let the team down.

"I know for a fact that morale in the dressing-room went down after the Birmingham game," Dixon told The Times. "Players were looking at the captain and asking 'What is he doing?' He wasn't acting like a leader and hasn't done for much of the season. Real captains cannot let their emotions take over, never ever, as they should always be thinking of their team-mates and leading by example. Gallas doesn't appear capable of doing that."