"The way we play is to switch positions a lot and create space for others," Mueller said. "I never really had a fixed position anyway, I've played on the right wing for the national team before, I would have no problem doing it again."
Brazil's star Neymar is one goal ahead of Mueller in this tournament, but the German player says he is not seeking the title of top scorer.
"I already have that from the last time. I want to win the big one, the World Cup title. If I score, so much the better," Mueller said.
Mueller is hard to figure for opponents because of his unorthodox style, but he also contributes in other ways. "He is very positive, he is important for the mood in the team," assistant coach Hansi Flick said.
Jurgen Klinsmann, the current coach of the U.S. team, brought Mueller into the senior squad when he coached Bayern. Under Klinsmann's successor Louis van Gaal, Mueller became a regular.
"Mueller always plays," said the coach who was famous for rotating players.
Despite his link to Klinsmann and many other bonds between the German and American teams, Mueller dismissed any notion of a deal to settle for a convenient draw.
"We are not playing against Klinsmann," he said, "we are playing against the United States."