Top seed Agnieszka Radwanska of Poland overpowered Russia\'s Vera Dushevina 6-2, 6-0 to secure a semi-final berth at the Korea Open on Friday. The world number four will meet Spain\'s Lara Arruabarrena, who broke local hearts by ending the run of wildcard entry Jang Su-Jeong 6-0, 6-4. The third quarter-final also saw the end of an impressive run by veteran Kimiko Date-Krumm of Japan, who will celebrate her 43rd birthday later this month. Krumm, who had claimed the scalp of second-seed Maria Kirilenko to reach the quarter-final stage, took that form into her match with Italy\'s Francesca Schiavone, winning the first set 6-4. But the former French Open champion hit back to take the next two sets 6-4, 6-4. \"It was very tough,\" Schiavone said. \"Date was really strong and she deserved to win the first set, but fortunately I managed to get back in the match.\" The Italian will meet third seed Anastasia Pavlyuchenkova in the semis after the Russian comfortably saw off Irina-Camelia Begu of Romania 6-2, 6-2. From: AFP