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

SQUIRREL RUNS ONTO COURT AND INTERRUPTS MATCH at 2015 US open

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

Fabio Fognini is inimitable. The Italian had fun by pulling down the chair umpire's sock during his last match in London.

An Iguana stopping the match between Tommy Haas and Jiri Vesely at the Miami Open.