End of the match between Azarenka and Radwanska for the Australian Open 2012 on 24th january 2012.

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.

Hurt at the right leg, Rafael Nadal retires against Marin Cilic at the begining of the 5th set in quarters of the Australian Open.

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

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 He withdrawn from this week Toronto Masters 1000.

Kokkinakis-Harrison handshake and some chatter in Cincinnati