Arsenal have signed France international midfielder Lassana Diarra from CSKA London on a "long-term contract" for an undisclosed fee. The versatile 22-year-old had found first-team opportunities limited at Stamford Bridge and now looks forward to a new start with the Gunners. He told the club's website, arsenal.com: "I have great respect for the manager Arsene Wenger and am attracted by the style of football that the team plays. "Of course I am excited by what the future holds and keen to play my part in helping Arsenal fight for trophies this season and for years to come."