SEOUL, South Korea (AP) - Top-seeded Agnieszka Radwanska rallied from a set down on Sunday to beat Anastasia Pavlyuchenkova 6-7 (6), 6-3, 6-4 and win the Korea Open. Radwanska hit five aces and took advantage of 10 double-faults by the third-seeded Russian player to win in 2 hours, 45 minutes at Olympic Park tennis stadium. Sunday's win was Radwanska's first since winning the Apia International in Sydney in January. Radwanska, No. 4 in the world rankings, improved to 3-1 in head-to-head matches against the 32nd-ranked Pavlyuchenkova.