Caroline Wozniacki celebrated in defeat on Wednesday after injured Russian Maria Sharapova's withdrawal from the season-ending WTA Championships made sure the Dane would end the year as world number one.
Wozniacki lost 6-2, 4-6, 6-3 to Russian Vera Zvonareva but with Sharapova already packing her bags for home, the loss in her second round-robin match in the Sinan Erdem Dome did nothing to weaken her grip on the top ranking she has enjoyed for 36 weeks.
Wozniacki, 21, now faces Wimbledon champion Petra Kvitova on Thursday.
Melzer in Austrian Open quarters
Third seeded crowd favourite Jurgen Melzer kept up his recent impressive record at his home ATP Austrian Open on Thursday when he defeated Spain's Guillermo Garcia-Lopez 7-5, 6-1 to reach the quarters.
Safin running for Russian parliament
Former top-ranked tennis player Marat Safin says he is keeping busy in his retirement and is even running for Russian parliament.
The 31-year-old Safin could join other Russian sports stars including gold medal-winning gymnast Svetlana Khorkina in the lower house of the parliament.