Bayern Munich chief Karl-Heinz Rummenigge says there's no guarantee they will sell Franck Ribery this summer.

Chelsea and Real Madrid are chasing the Frenchman, who has snubbed new contract talks with Bayern.

Rummenigge is adamant Bayern will decide where Ribery plays next season and it is not certain the former Marseille star will leave the club.

"Our first goal is to sign a contract extension with him," Rummenigge told Kicker magazine.

"But I will say this clearly - anyone who believes that we will sell Franck automatically at the end of the season if there is no extension is making an error.

"Bayern Munich will decide where Franck plays next season."