If there was ever a doubt about tennis superstar Roger Federer’s past moves and whether he is kicking himself for retiring early – because on his worst days, he still made it to the semi-finals of nearly every Grand Slam in the Open era – here is an image that conveys that the man is happy with his decision.

Seen in this image with Coldplay’s Chris Martin is Roger Federer who clearly doesn’t have tennis on his mind. Joining the band during their Zurich concert, he reportedly stunned fans with his singing.

Whether you like Chris Martin or not, he is still said to be among the nicest guys in the music business and irrespective of critic reviews, fronts the world’s most popular band.

Being joined onstage by a sporting legend from the game of tennis, a man who is referred to as the GOAT (greatest of all-time), Martin and the boys didn’t seem to mind and in turn, Roger Federer didn’t have Wimbledon on the mind either.