Tennis Tennis Radwanska keeps title defence alive with semifinal berth Agnieszka Radwanska will meet Daria Gavrilova in the New Haven semis after a 7-5 6-3 winn over Peng Shuai on Thursday. Sacha Pisani 25 August, 2017 09:16 IST Polish star Agnieszka Radwanska kept her title defence alive by seeing off Peng 7-5 6-3, in a match that nearly went on for two hours. - Getty Images Sacha Pisani 25 August, 2017 09:16 IST Defending champion Agnieszka Radwanska overcame Peng Shuai to reach the semifinals of the Connecticut Open, while second seed Dominika Cibulkova also won through to the final four.Polish star Radwanska kept her title defence alive by seeing off Peng 7-5 6-3 in New Haven on Thursday.Seeking her first title of the year, Radwanska was made to work in the quarter-final battle lasting almost two hours at the WTA Premier event. Next up for Radwanska is Australian Daria Gavrilova, who ousted qualifier Kirsten Flipkens 6-2 6-4.Cibulkova progressed to the Connecticut Open semis for the first time in her career after prevailing against Anastasia Pavlyuchenkova. In their third meeting of the year, Cibulkova emerged triumphant 7-5 6-4.There was a 30-minute break in play as a fan received medical treatment with Cibulkova leading 6-5 after saving three break points. Cibulkova returned to close out the set on Pavlyuchenkova's serve and the Slovak raced out to a 5-0 lead in the second.Fighting to stay in the match, Pavlyuchenkova reeled off four successive games and saved four match points but she was unable deny Cibulkova at the fifth opportunity.Meanwhile, Elise Mertens advanced to the semis after Zhang Shuai withdrew due to injury. Subscribe to our daily newsletter Get your daily dose of Sportstar with handpicked stories delivered right to your inbox! SUBSCRIBE Please enter a valid email address.