SOFIA, Bulgaria, Nov. 1 (UPI) -- Samantha Stosur and Anastasia Pavlyuchenkova notched must-win victories Friday in gaining semifinal berths at the WTA Tournament of Champions in Bulgaria.
Stosur, the No. 4-seed, finished off round-robin play with a 6-1, 6-4 win over eighth-seeded Tsvetana Pironkova. She had a pair of first-set breaks and moved ahead with a break in the seventh game of the second set.