The top three teams from Groups A and B advanced Cause_to_make_progress to the quarterfinals Competition along with the top two teams from Group C. For this season the schedule splits Change into two stages , the first is a league stage and the second being a knock-out stage .

He stopped Preventing_or_letting four-time defending Defending champion Walter Hagen in the quarterfinals , ending Process_end his winning streak at 22 matches .

This marked Recording the first time since 1927 that both defending champions were eliminated Cause_change_of_position_on_a_scale before the quarterfinals Competition .

Williams successfully defended Defending her title , but Murray was defeated Conquering in the quarterfinals Competition by Stanislas Wawrinka .