Highlights of the Serena Williams over Maria Sharapova victory in the 2012 WTA Championships final in Istanbul. (2012-10-28)

Furious at losing the second set of the final against Andy Murray, Novak Djokovic yells at his camps . A reaction that surprises and scares the ball boy came to bring him his towel . The chair umpire then sanctioned him and the Serbian apologized in the end .

Roger Federer vs Juan Martin Del Potro - ATP Dubai 2012. Highlights

Due to an eye injury, Novak Djokovic was forced to withdraw against Feliciano Lopez in Dubai.

Ka. Pliskova broke the umpire's chair after an unbelievable mistake from that umpire