Freddie Ljungberg reveals the ONE weakness he thinks Wenger's Invincibles had

Arsenal legend Freddie Ljungberg has opened up on the one weakness he feels the Invincibles had under Arsene Wenger.

The Gunners created history in the 2003-04 season when they went a full league campaign unbeaten, a feat that has not been matched before or since in the Premier League era.

Ljungberg played a key role in that side, but admits they weren't unstoppable, and has pointed out a weakness that was exposed by Chelsea when Jose Mourinho took over the Blues in 2004.

'One main weakness was if I sometimes came out here, wide right, and people said "Oh, cross the ball, Freddie, you're free just cross it",' Ljungberg explained on Monday Night Football. 'I think it was Mourinho and Chelsea that started to do it, they didn't come out and press.

'So I could stand out here with the ball and the full back didn't come. They'd just stand with their four in the box and they were great headers, John Terry, Carvalho in the middle, and our strikers were not the best in the air.

'So they were just "no, come on, cross the ball". And that, in my opinion, we couldn't really find a threat.'

Ljungberg alluded to how teams appeared to figure Arsenal out after a while, but they still had great success during this period, winning three league titles in six years, with their Invincibles capping off a golden era.

Ljungberg puts this down to having a starting XI where every player could claim to be one of the best three in the world in their position. He refused to name who the best player was, but gave special mention to Dennis Bergkamp, admitting he had great admiration for the Dutchman always putting the team before himself.

'I feel wrong to say Thierry is the best player I played with because I was in awe of all my team-mates. But in terms of