Roger Federer and Tommy Haas play mini-tennis before their real match in Stuttgart.

Caroline Wozniacki use some towels to imitate Serena Williams during her exhibition match against Maria Sharapova in Sao Paulo.

Nicolas Mahut missed that one. He served right in the head of his partner Pierre-Hugues Herbert during the double final of the Australian Open. All is fixed at the end with a little kiss.

One of the ball boys makes an amazing catch during the Federer Nadal Semifinal match at the Australian Open. Then there was a cricket reference to Ricky Ponting, and the crowd goes crazy!

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

Diego Maradona is also on fire in the stands ot the Zagreb Arena to support is Argentina against Croatia in 2016 Davis Cup Final.