The 23-year-old has got together with Renaud Longuevre as he bids to enter the 2009/10 season in peak condition.

Longuevre has worked with some of the world's finest athletes and Diaby will now spend four weeks with the track and field trainer.

"When I feel that a sportsman is ready to give it all in order to reach a stage, it suits me," said Longuevre.

"He is motivated and wants to reach the next stage on the physical level."

The midfielder has suffered several niggling injuries since joining the club in 2006. Last season he regularly found himself on the sidelines and Longuevre has revealed that the demands of the Barclays Premier League were a factor in Diaby's decision.

"The English league is very demanding; as a consequence his objective is to improve physically in order to be stronger and more resistant," Longuevre added.

"He wants to be stronger in challenges. That is why he needs more muscle power."

Diaby scored in Arsenal's last match of the season, a 4-1 win over Stoke City.