Emma Raducanu facing scheduling nightmare after Korea Open quarter-final is postponed

Emma Raducanu's Korea Open quarter-final with Daria Kasatkina has been rained off.

Raducanu was due to play the top seed on Friday morning, but heavy rain in Seoul has forced all play to be abandoned for the day. The 21-year-old will now play on Saturday and if she wins will have to return to court later that day for a semi-final.

Raducanu has shown promising signs during her two victories in the tournament so far, battling hard to beat top 50 players Peyton Stearns and Yue Yuan on her way to the last eight. She is looking to make just her second ever WTA Tour semi-final, having also reached the last four in Nottingham in June, but she will have a tough test against the world number 13.

Kasatkina beat Raducanu in the quarter-finals in Eastbourne in the week before Wimbledon. Matches between Diana Shnaider and Marta Kostyuk, Polina Kudermetova and Beatriz Haddad Maia and Viktoriya Tomova against Veronika Kudermetova are also abandoned.

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Raducanu was particularly impressive with her serve throughout her straight-sets victory over Chinese eighth seed Yue, producing 11 aces including eight during the second set. Her serves helped her reach a fifth WTA quarter-final this year and she admitted it is something she has been working on.

"If you watch my serve over the past few months, since the clay season it's gone through a lot of iterations in terms of swing," Raducanu told the WTA website afterwards. "In general, if you play a lot of tournaments, things move out of place without you really realising, and then it's harder to get the natural feeling back.

"We've been working hard the last week looking at the swing, and which swing suits me best. It's been pretty big changes, it's not like we're just changing the ball placement. Me and my coach decided we were going to take a risk and we were going to tweak things. We know it might not pay off short-term.

"But one thing I do back myself on is I pick things up pretty quickly. In the first match it didn't transfer yet, but today it definitely did. I just have to think bigger-picture. My goals are finishing this season strong but inevitably to set myself up in the best way possible for next year, because next year I really want to hit the ground running."