A foot injury forced Emma Raducanu to retire from the Korea Open quarter-finals on Saturday, while third seed Beatriz Haddad Maia beat sisters Polina and Veronika Kudermetova on the same day to set up a Korea Open final clash with top seed Daria Kasatkina.

Emma Raducanu made her first retirement of the season at the Korea Open in Seoul on Saturday. Suffering from pain in her left foot, she pulled out of her quarter-final against top seed Daria Kasatkina while trailing 6-1.

Daria Kasatkina (No. 13 ranking) will face Emma Raducanu (No. 70) in the quarterfinals at the Hana Bank Korea Open on Saturday, September 21. Watch Tennis Channel by subscribing to Fubo today. In terms of serve/return winning percentages over her last 10 tournaments, Kasatkina has won 61.3% of her games on serve, and 45.6% on return.