Murray, Thiem, Goffin, Firtz or Herbert try the Gong Challenge in London (ATP Finals/Masters).

Ryan Harrison traps Grigor Dimitrov's interview with the complicity of the interviewer in London (ATP Finals - Masters).

Grigor Dimitrov gets more than he bargained for after blowing out the candles on his 23rd birthday cake. His coach, Roger Rasheed, had another idea for him.

Andy Roddick imitates Rafael Nadal during an exhibition night in Toronto. Milos Raonic, Serena Williams and Agnieszka Radwanska also took part of this event. (2012-11-16)

Roger Federer and Rafael Nadal can't stop laughing during filming a tv spot. The goal was made to promote two charity matches between the Swiss and the Spanish during 2010 offseason.

Chair Umpire gets hit by Karolina Pliskova return in Indian Wells.