Singapore: Agnieszka Radwanska sent top seed Simona Halep crashing out of the WTA Finals on Thursday with a 7-6 (7/5), 6-1 win which also put a resurgent Maria Sharapova into the semi-finals. But despite her 500th career victory, Poland's Radwanska now faces an anxious wait as she needs the Russian to beat Italy's Flavia Pennetta in straight sets later if she is to enter the semis.


Maria Sharapova. Pic/AFP

"All I can do is watch and cheer for Maria," Radwanska said. There are no such complex round-robin calculations left for Halep, whose campaign was ended by Radwanska's defensive skills and experience accumulated over seven appearances at the season finale. The Romanian world number two, last year's runner-up to Serena Williams on debut, made a strong start when she immediately broke Radwanska in the first game.