MANCHESTER UNITED supporters feel that Thomas Muller “isn’t taking them seriously” as a result of his peculiar training-related activities.

On Wednesday night, Bayern Munich will be Erik ten Hag’s team’s opponent at the Allianz Arena in their Champions League debut.

Muller was in the mood for humor as Manchester United players buckled down in training at Carrington following an altercation in the dressing room following their 3-1 loss to Brighton.

He oddly leaped next to the practice field used by the German squad while pretending to have wings.

Fans are in convulsions over Muller’s antics; one exclaimed, “He can’t take Man Utd seriously.”

One more person said, “The funniest guy in the history of the game.”

“That is adequate preparation for United,” said a third.

Muller is in such a good mood that he acknowledged making jokes about Man Utd before the game on Wednesday.

In a press conference, he stated: “Manchester United should never be underestimated when they are at their worst.

Earlier today in training, I cracked a few jokes, but deep down I know it’s not going well. 

Muller, who owns a horse named Dave, frequently plays the clown for Bayern and has been seen throwing beer over spectators’ heads during championship celebrations.

In order to escape being questioned by reporters at an airport, the 34-year-old once feigned that his passport was his phone.

As well as calling Robert Lewandowski, a former Bayern striker, “LewanGOALski” in press interviews.