Three seeded players fall in Korea Open second round
Katerina Siniakova of the Czech Republic posted a 7-6 (2), 6-2 upset of No. 4 seed Daria Kasatkina of Australia in the second round of the Korea OpenKaterina Siniakova of the Czech Republic posted a 7-6 (2), 6-2 upset of No. 4 seed Daria Kasatkina of Australia in the second round of the Korea Open