The midfielder was part of the victorious Cameroon side at the Sydney Olympics and has played all his career in Germany.
The 23-year-old started out with Eintracht Braunschweig before moving to Eintracht Frankfurt in 2000 and he holds a French passport.
Last season he joined VFB Stuttgart on a one-year deal but is now out of contact. He has previously had trials with Queens Park Rangers and Nottingham Forest.