Great Britain's Heather Watson is knocked out of the Korea Open following a straight-set defeat by Ukraine's Marta Kostyuk in the second round in Seoul.

Watch the Korea Open live on Sky Sports Tennis between September 16 and September 22; British superstar Emma Raducanu remains in contention, she will face Chinas Yue Yuan on Thursday

Heather Watson (No. 183 in the world) takes on Marta Kostyuk (No. 18) in the Round of 16 at the Hana Bank Korea Open.Kostyuk is favored over Watson for this match, with -450 odds

Preview the Heather Watson vs. Marta Kostyuk match with Hana Bank Korea Open TV channel, live stream, match info, and H2H stats

Heather Watson (No. 183 in the world) meets Marta Kostyuk (No. 18) in the Round of 16 at the Hana Bank Korea Open.Watson defeated Jia-Jing Lu 6-4, 6-4 on Monday in the Round of 32 in