Schweinsteiger finished on the losing side and took aim at Materazzi at the final whistle.
Gazzetta dello Sport says the midfielder declared: "Now I know how (Zinedine) Zidane felt!
"The Inter defender did nothing but cause trouble from the time he left their dressing room. It was not professional or proper behaviour."
There are also claims of Bayern players clashing with Inter fitness coach Stefano Rapetti at the end of the game.