Petra Kvitova stunned Maria Sharapova on Saturday to set up a championship clash against Agnieszka Radwanska at the BNP Paribas WTA Finals Singapore presented by SC Global.

The day's first semifinal was already an underdog story with Radwanska, who had gone 1-2 in the round robin, ending the perfect week of Garbiñe Muguruza, who had gone 3-0 in the round robin.

And it was exactly the same story in the second semifinal as Kvitova, 1-2, came out swinging against Sharapova, 3-0, reeling off four games in a row to capture the 42-minute opening set, 6-3.

The No.3-seeded Sharapova rebounded in a big way in the second set, storming out to a 5-1 lead, even bringing up a set point at 5-3, but the No.4-seeded Kvitova caught fire one last time, winning five of the next six games to push the set to a tie-break then taking seven of eight points from 2-0 down to close the match out in straight sets, 6-3, 7-6(3), letting out one last battle cry after match point.

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Lucie Safarova waved farewell to the BNP Paribas WTA Finals Singapore presented by SC Global in style with an impressive victory over Angelique Kerber in Friday, 30 October.

"That's teamwork," Safarova said. "I am happy for Petra that she went through to the semis and I am happy for my win today as well."

Safarova, who had played well in losing efforts in her opening two round robin outings, got off to the perfect start against Kerber, breaking twice in the first three games.

Kerber, on the other hand, appeared to struggle with the occasion, never threatening to close the gap as the Czech calmly closed out the set.

"I was not feeling good. From the first point I couldn't find my rhythm. I was actually not there," Kerber said. "I was tight and I was not playing my tennis. Lucie played a good match for sure, but for sure it was not my best match today."

When Kerber dumped a forehand halfway up the net to surrender her serve in the third game of the second, Safarova's stranglehold on the match tightened further. The only slight wobble came in the final game, Safarova spurning three match points before finally closing out victory at the fourth time of asking when the German sent a tired forehand wide.

text by WTA