Bayern Munich chairman Karl-Heinz Rummenigge has called on the German Football Federation to take action against Jens Lehmann.
The veteran Stuttgart and former Germany goalkeeper has earned the wrath of Bayern after suggesting that they have been the beneficiaries of generous refereeing decisions at times this season.
Lehmann's comments have further stoked up the atmosphere ahead of Saturday's final-day meeting of the two sides after which Bayern could be crowned champions.
"Jens Lehmann is accusing referees of manipulation and deception. That is ridiculous," said Rummenigge.
"I am interested to see how the DFB react to the issue.
"Of course Jens has an agenda. He wants to turn the atmosphere against us."