When asked in the interview to speak on the GOAT debate, Muller explained: "Lionel Messi is the GOAT. In my first 10 years as a professional player, I would have chosen Cristiano Ronaldo, but since the 2022 World Cup with Argentina, it's been Messi for me. Now, as I get older and more romantic myself, playing style and aesthetics are more important to me than individual performance, work ethic, and so on."
He further added: "Both are absolutely crazy. I don't know why it worked so often against him [Messi]."