Andy Murray is the reigning champion of the U.S. Open, Wimbledon and the Olympics, but that doesn’t mean he’s immune from the occasional embarrassing shot, like this flubbed overhead that looked like it was rejected by Dikembe Mutumbo.

He just forgot to finish the stroke. Maybe he thought he doing a Bryan brother chest bump? He was returning a successful Denis Istomin tweener and Istomin had hilariously missed another earlier in the match, so maybe Murray was temporarily stunned by his opponent’s trick-shot triumph? Or perhaps Murray’s coach, Ivan Lendl, played a prank on him. I mean, look at Lendl; isn’t this the face of a jokester who would playfully stuff quarters in his player’s shoes so he wouldn’t jump high at an opportune moment?

No? Okay, then we have no idea what happened. But we do know that the side view of Murray’s flub is even better.