Thomas Muller's strange training-related activities have led Manchester United supporters to feel that he isn't taking them seriously.
Bayern Munich will be Erik ten Hag's team's opponent at the Allianz Arena in their Champions League debut today.
15:00 - 20.09.2023
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Can Manchester United overcome their loss to Brighton by beating Bayern Munich at the Alianz Arena on Wednesday night?
Muller was in a joking mood during Bayern Munich training session ahead of their preparation against Manchester United.
His training actions have caused a lot of uproar as Man United fans claim he is not taking them seriously ahead of their clash.
Thomas Muller training video
Muller's antics had Man United supporters worried with his training routine looking like he was teasing the Red Devils.
21:00 - 20.09.2023
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Muller's antics have left United fans in hysterics, with one saying, "He can't take Man Utd seriously."
Another added, "The funniest guy in the history of the game."
A third commented, "That is adequate preparation for United."
Muller is in such a good mood that he acknowledged making jokes about Man Utd before the game.
He said in a press conference, "One thing I learned, is never underestimate Manchester United at their lowest point.
"I made some jokes earlier in training today but deep down I know it's not looking good."
Man United face a big test as they open their Champions League campaign against German giants Bayern Munich.