Highlights of the WTA Championships 2012 in Istanbul fourth day of competition. (2012-10-26)

Roger Federer celebrates his 37th birthday away from the ATP Tour. He withdrawn from this week Toronto Masters 1000.

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

Kokkinakis-Harrison handshake and some chatter in Cincinnati

Roger Federer beats Andy Murray in Dubai and wins his second titel in 2012.