
WTA semifinal lineup complete —
A subdued Li Na acknowledges the Istanbul crowd after becoming the first Chinese player to reach the semifinals of the WTA Championships.

WTA semifinal lineup complete —
The 31-year-old comfortably beat world No. 2 Victoria Azarenka, who refused to retire despite a debilitating back spasm that ended her chances of repeating her run to the 2011 final.

WTA semifinal lineup complete —
Li will next face 2011 champion Petra Kvitova, who came from behind to beat Germany's Angelique Kerber in three sets to secure second place in the Red Group behind Serena Williams.

WTA semifinal lineup complete —
World No. 1 Williams will take on Serbia's Jelena Jankovic, who finished second behind Li in the White Group despite losing her closing match to Italy's Sara Errani.

WTA semifinal lineup complete —
Defending champion Williams had a rest on Friday, having already sealed her semifinal berth with three successive victories.