Petra Kvitova didn't know what hit her. The Czech was up a set and 4-3 in the second when Jelena Jankovic broke her serve to level the match. The relentless Serb then played aggressively, taking the ball early and surprising Kvitova with deep returns that brought her once to the top of the rankings. After two hours and a Kvitova forehand hitting the net, Jankovic fell to the ground and raised her hands to the cheers of the Centre Court crowd.  

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"I cannot stop smiling," Jankovic said after eliminating the defending Ladies champion who will now move out of the no. 2 spot in the rankings. "I'm really, really happy. I don't know how to explain. But it's a really big win for me, especially playing on Centre Court against a two-time champion, a Wimbledon champion. It's really amazing."

Kvitova was at a loss during her post-match interview. Her 24 winners and 6 aces didn't do enough to slow down Jankovic who had answers to every attack from the second seed. Despite comfortably winning her previous matches against Kiki Bertens and Kurumi Nara, it was apparent that Kvitova struggled with her game. There were a few notable shots, such as the blistering backhand in the first set that gave Kvitova a 5-2 lead, but her ultimate weapon - her serve - seemed to let up as the match progressed.

"I'm not really sure what happened," Kvitova explained. "I was just missing it. It was really unusual or weird. I was still waiting for some chance, and it didn't come unfortunately."

Kvitova was the favorite in the lower bracket of the draw. There were talks of her facing world no. 1 Serena Williams in the finals but the spotlight is now on Jankovic who might just make her Wimbledon Finals debut. But first, she has to stop Agnieszka Radwanska.

The 13^th seed breezed through the early rounds of the draw without losing a set. Being a former Wimbledon finalist, Radwanska knows her way on the grass and her versatility complements the fast surface. Her recent match was against Australia's Casey Dellacqua and she managed to hit 7 unforced errors only as opposed to Dellacqua's 32.

Radwanska's record against Jankovic is 5-2 but their last encounter in Rome went to the Serb in straight sets. Though the Polish no. 1 has the slight advantage on paper, Jankovic's recent confidence-boosting win may just turn the tables.

"God knows, anything can happen," Jankovic told the Guardian. "Beating her (Kvitova) gives me a lot of confidence."

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