Sol Campbell has left Arsenal in search of a "fresh challenge".

The 31-year-old England defender, who has been linked with Portsmouth and Fenerbahce, has quit the Gunners with a year remaining on his contract.

After making a controversial Bosman transfer from north London rivals Tottenham, Campbell made 197 appearances for Arsenal and helped them win the Premiership title in 2002 and 2004.

Campbell said: "After much consideration, I have taken the decision to leave Arsenal."