When asked about his thoughts on joining United in 2015, Müller replied, "Yeah, I thought about it. There were some moments I thought it would be nice to experience it." He also acknowledged that a move to United was appealing to him at the time, particularly when he was younger and in his prime.

However, Müller made it clear that he is not interested in joining United now. He stated, "Now? No, no. I'm not the right guy for them and they are not the right club for me. They won't have fun and I won't have fun so that's not a match." Müller's wife had been a factor in the transfer decision, with van Gaal stating that she was not open to a transfer abroad in 2015.

Van Gaal had attempted to sign Müller in both the 2014/2015 and 2015/2016 seasons. Müller's potential move to United would have been a significant transfer at the time, as the club was still rebuilding after the departure of Alex Ferguson.