Bayern Munich president Herbert Hainer is hoping fans do not jeer Robert Lewandowski tomorrow night.
The Pole returns to the Allianz Arena with Barcelona for the first time since his summer sale.
Ahead of the Champions League clash, Hainer told Sport: "I hope, and that is my great wish, that people are nice to Robert and that he has a friendly welcome, because he played eight years with us, scored a lot of goals and decided a lot of games. And we won all the big titles.
"And in the end, everyone got what they wanted: Robert was able to go to Barcelona, Barcelona are happy to have Lewandowski and we have money to invest in our future. Everyone should feel comfortable and I hope that our fans will welcome him.
"We have great respect for Barça. I personally believe that Spanish football is a model to follow: the national team wins, Madrid wins, Barça wins. We have also benefited from it, we have had Pep Guardiola as coach. Barça has had wonderful players: Xavi, Iniesta, Piqué, Busquets, Messi... and the club is so big that it will continue to set standards in the future."