Oliver Kahn says Bayern Munich blocked him from joining the players in their title celebrations.
Kahn was sacked as chief exec before the game.
He posted to social media: "Incredible. Congratulations and congratulations to the boys, I've always told you to give everything and never give up.
"We are proud of you and of this result.
"I wanted to celebrate with you but I can't because I was forbidden. I can't wait for next season, let's celebrate."