Bayern Munich chief Karl-Heinz Rummenigge has criticised Jose Mourinho and Ramires for the tackle which left Mario Gotze injured during the Super Cup on Friday.
Gotze is set to spend another three weeks sidelined following a late challenge by Chelsea midfielder Ramires, which saw the Brazilian receive a second yellow card.
After the game, Mourinho contested the decision to send his player off, saying: "The referee must have passion for the game and the game 11 v 11 was much better.
"It was not a situation where Ramires hurt the opponent, was not a situation where the opponent was in a dangerous counter-attack, was not a situation where you needed to show that second yellow card."
Rummenigge has continued the row and accused Mourinho of impertinence, telling Bild: "In this foul, Mario [Gotze], you have to admit, is rather a lucky fellow. I think Mourinho’s statement was impertinent.
"If Mario still had his leg on the ground it probably would have been completely wrecked. That was the clearest red card ever. If a prominent coach like Mourinho then talks about a referring error, I ask myself if I attend the wrong game."
Gotze was relieved that he only suffered swelling, believing originally that he may have been spending a longer spell out of action.
"Of course it bothers me that I am ruled out for a few more weeks again," he said. "But if you look at the pictures, you can only be delighted that nothing worse happened."