World No. 2 Rafael Nadal got a bit overzealous while he was waiting for his matchup with Gilles Muller on Monday. Muller could barely fit under the door frame, but Nadal just couldn't contain himself, and nothing gets a tennis player psyched up quite like a concussion. Nadal took a leap of faith and he came down mighty quickly before laughing off the incident with Muller.

Nadal couldn't exactly pull off the "I hope no one saw that move," as a security guard was right behind him and Muller heard the thunk. The guard clearly had no idea whether to laugh or ask him if he was OK, but when he saw Nadal laughing he let loose and got a chuckle out of it.