Bayern Munich winger Franck Ribery says his future at Allianz Arena is contingent upon the Bavarians' progress in the UEFA Champions League. The German side host Fiorentina in the continental competition's round of 16 on Wednesday, and both teams meet again on March 9th. "Our result in the Champions League will of course play a part in my decision. For me, footballing potential is the most important thing," Ribery, 26, told Bild. "Seeing how the team is playing, we've got every chance in the Champions League. "Our squad isn't quite as good as Barcelona or Real but when everyone is on form, the 11 on the pitch are top class." Heavyweights Manchester United, Chelsea, Barcelona and Real Madrid are all understood to be interested in landing the French ace who joined Bayern in 2007.