Highlignts of the WTA Championships 2012 in Istanbul second day of competition. (2012-10-24)

Roger Federer came through a tight QF match against the Finn Nieminen. Just as in his previous match he didn't face any breakpoints. Next up is Nikolay Davydenko who beat Richard Gasquet 7-5 6-3. Fed leads their H2H by 16-2, beating him 6-2 6-2 in their last meeting in Doha this year.

Juan Martin Del Potro explains that he decided to have another wrist surgery to fix his left wrist problem. He looked for other solutions but without succes because his tendon his damage.

After the victory of Victoria Azarenka on Saturday, here are the best WTA moments of this 2016 Miami Open.

Davis Cup Final court revealed

IPTL 2015: Day 13 Highlights