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 is through to his second consecutive ATP Tour final, at the Open 13 in Marseille.

Highlights of the WTA Championships 2012 in Istanbul first day of competition. (2012-10-23)

Highlights of the WTA Championships 2012 in Istanbul semifinals. (2012-10-27)

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

Highlights of the WTA Championships 2012 in Istanbul third day of competition. (2012-10-25)