Jean Zimmer has decided to retire from his professional career at 1. FC Kaiserslautern and take on a new role within the U21 team. He has decided not to wear any other jersey than that of FCK and will be involved in sporting activities off the field. Zimmer will be taking on a leadership role in the U21 team while gaining experience in various areas within the club. Currently, Transfermarkt estimates his market value at 450k euros.