Korda says Australian Open-ending injury first appeared in Adelaide

Tennis - Australian Open - Melbourne Park, Melbourne, Australia - January 24, 2023 Sebastian Korda of the U.S. during a press conference after he retired from his quarter final match against Russia's Karen Khachanov due to injury REUTERS/Hannah Mckay

MELBOURNE, Jan 24 (Reuters) - Sebastian Korda thought he had seen the back of a wrist problem that sprang up in Adelaide before subsiding earlier this month, but it returned with a vengeance at the Australian Open on Tuesday to derail the American in the quarter-finals.

Korda retired while trailing Karen Khachanov 7-6(5) 6-3 3-0 at Rod Laver Arena, dashing his hopes of emulating his father Petr, who won the title at Melbourne Park in 1998.

The 22-year-old said he was struggling to even hold the racket after making a forehand in the second set.

"I had it a little bit in Adelaide a couple weeks ago, but then it went away," said Korda, who lost to Novak Djokovic in the final of the Australian Open warm-up tournament.

"During the matches, it was completely fine. Then just one kind of mishit return, and it started to bother me a lot of after that."

The American 29th seed said he knew right away he was in trouble.

"I kind of felt that spot that I was feeling before," Korda said. "Some forehands I couldn't even hold the racket. Volleying was almost impossible for me.

"Today was tough, but hopefully it's nothing serious and I can take care of it so I don't have it in the future."

Korda, who stunned former U.S. Open champion Daniil Medvedev and Polish 10th seed Hubert Hurkacz to reach the quarters, said there were plenty of positives from the Grand Slam despite the nature of his exit.

"I have always been very close to winning the big matches, but now I'm getting through them," Korda said. "I think that's a huge lesson I have been learning. I'm really proud of myself.

"I'm going to keep on trying to do the same thing, keep on mentally being the same way. I think I can do some really big things in the near future.

Reporting by Shrivathsa Sridhar in Melbourne; Editing by Peter Rutherford

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