Fifth seed Petra Kvitova of the Czech Republic lost in the third round of the Aegon International at Eastbourne while top-seeded Agnieszka Radwanska cruised into the quarterfinals on Wednesday.
Two-time Wimbledon singles champion Kvitova was defeated by British 11th seed Johanna Konta 5-7, 6-4, 6-0 in a match lasting two hours and 16 minutes.
In the first set, there were five service breaks and Kvitova clinched the set 7-5 with a break in the 12th game.
Konta upped her aggression in the second set and broke serve in the fifth game. Things went with serve until the 11th seed clinched it 6-4 on the third set point.
Three service breaks in the final set gave Konta the set and victory 6-0.
Pole Radwanska had few problems getting past Eugenie Bouchard of Canada 6-3, 6-3 in 73 minutes to set up a quarter-final match against 12th seed Dominika Cibulkova of Slovakia.
Cibulkova got past Kateryna Bondarenko of Ukraine in straight sets, winning 7-6(3), 6-3.
Russia's Elena Vesnina defeated Madison Brengle of the US 7-6(2), 6-4 while Kristina Mladenovic of France beat Germany's Anna-Lena Friedsam 6-4, 7-6(4).
Puerto Rico's Monica Puig was also in action, beating crowd favourite Caroline Wozniacki of Denmark 4-6, 6-3, 6-4.
Two matches were stopped due to poor weather conditions – Japan's Misaki Doi v Karolína Pliskova and Andrea Petkovic v Ekaterina Makarova will in all likelihood be completed on Thursday.