Recently, Mueller talked about the upcoming Club World Cup in an interview.

Muller said: "There are many strong teams from different countries participating in this game, and they all have high levels. In addition, there are top European teams, which are not only of high quality, but also of diversity."

"I look forward to feeling the atmosphere of the Club World Cup for the first time on the spot. If we can be the winner of this Club World Cup at the best, I hope we will feel like this: Hey, we have achieved great success again as a team."