MELBOURNE, Australia (AP) — Karen Khachanov moved into his first Australian Open semifinal when Sebastian Korda stopped playing in the third set Tuesday because of an injured right wrist.
Khachanov will face either No. 3 seed Stefanos Tsitsipas or unseeded Jiri Lehecka for a berth in the final at Melbourne Park.
The 18th-seeded Khachanov was leading 7-6 (5), 6-3, 3-0 when the 29th-seeded Korda retired from the match.
Korda, 22, who upset 2021 U.S. Open champion and two-time Australian Open runner-up Daniil Medvedev in the third round, received treatment on his wrist from a trainer during the second set Tuesday.
Korda’s father, Petr, won the 1998 Australian Open.
The younger Korda was one of three American men to get to the quarterfinals this time, the most for the country at the Australian Open since 2000. The other two, Ben Shelton and Tommy Paul, meet for a berth in the semifinals on Wednesday.
Reigning Wimbledon champion Elena Rybakina also reached her first semifinal at Melbourne Park, beating 2017 French Open champion Jelena Ostapenko 6-2, 6-4.
Rybakina will play Jessica Pegula or Victoria Azarenka next.
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