DOHA, Qatar - Agnieszka Radwanska played the spoiler for Victoria Azarenka on Friday, denying the Belarusian a spot in the semifinals with a three set victory in the last match of the round robin portion of the Sony Ericsson Championships - Doha 2009. 
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Radwanska, the second alternate at the season-ending tournament, had lost her last two meetings with Azarenka. And it looked like that pattern would continue as the No.6 seed built a hefty 64 52 lead, striking the ball with major authority.
Serving for the match, Azarenka rallied from 0-40 to deuce, staved off an ad-out point to get back to deuce and looked primed to close the win out in straight sets right there. But a pair of double faults gave Radwanska the break and that was just the beginning, as the Polish No.1 went on a tear, taking nine of 10 games, while Azarenka's leg began giving way. With Radwanska up 46 75 41, Azarenka retired due to cramping. Highlights: A.Radwanska vs. Azarenka
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By virtue of Azarenka's loss, Caroline Wozniacki grabbed the last semifinal berth, and will face Serena Williams for a spot in the final. Earlier on Friday, Jelena Jankovic and Venus Williams snapped up semifinal berths.
"I feel so sorry for Victoria, because I know how she's feeling. It's never fun to pull out with an injury, especially in such a big tournament," Wozniacki said. "But, of course, I'm in the semifinals, and I'm happy about that."
"I was very happy I had the same chance like last year to play at least one match as an alternate," Radwanska said. "Caroline and I are best friends. I think I just gave her a great present." Interview: Agnieszka Radwanska
Read more about matches from earlier in the day...
Jelena Jankovic d. Caroline Wozniacki, 62 62
Svetlana Kuznetsova d. Elena Dementieva, 63 62
