In his weekly column for Sky, Lothar Matthäus wrote that Bayern Munich right back Bouna Sarr was “simply not a Bayern player.” The statement came about as Matthäus was criticizing Julian Nagelsmann for bringing in Marcel Sabitzer late against Eintracht Frankfurt and then deploying him at right-back.

https://www.bavarianfootballworks.com/2021/10/7/22711151/bayern-munich-bouna-sarr-lothar-matthaus-insult-focused-on-training-international-senegal