Novak Djokovic doesn't realize he broke a string during his semifinal against Kei Nishikori in Rome.

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

Noah Rubin destroy his shoe in Washington, D.C., pushing off to sprint for a ball against John Isner.

SQUIRREL RUNS ONTO COURT AND INTERRUPTS MATCH at 2015 US open

Novak Djokovic win the 3rd set against Stan Wawrinka but stay on his side of the court. Why ? He simply didn't realized that the set was already finished.

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)