Petra Kvitova’s reign as Wimbledon women’s champion came to a shock end on Saturday as Jelena Jankovic of Serbia staged a superb fightback to claim a 3-6, 7-5, 6-4 third-round victory. Kvitova’s exit marks the first time since 2009 that the two-time Wimbledon winner has failed to make at least the quarter-finals at the All England Club. I’m overwhelmed. I’m so excited. My heart is still pumping. I cannot believe this just happened but this is what this sport is all about Jelena Jankovic Jankovic looked down and out when she trailed by a set and was 4-2 down in the second against the Czech world No 2. But the Serbian 28th seed mounted a gutsy recovery and will play former Wimbledon finalist Agnieszka Radwanska for a place in the quarter-finals. “I’m overwhelmed. I’m so excited. My heart is still pumping,” Jankovic said. “I cannot believe this just happened but this is what this sport is all about. “After I won that second set I knew I had it, I just had to keep going. “In the last couple of years I played so poorly. “But beating her gives me a lot of confidence for the rest of the tournament. Now anything can happen.” With second-seeded Kvitova out, only four of the top 10 seeds are left in the women’s draw, providing a major boost to Serena Williams’ bid for a sixth Wimbledon title. The 25-year-old could have no complaints after allowing the match to slip from her grasp with 21 unforced errors, compared to just 11 from Jankovic, who hit 24 winners against only 13 from Kvitova.