Aug 16, 2019; Mason, OH, USA; Naomi Osaka (JPN) reacts against Sofia Kenin (USA) during the Western and Southern Open tennis tournament at Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-USA TODAY Sports
(Reuters) - Japanese world number one Naomi Osaka retired from her Cincinnati Masters quarter-final with an apparent knee injury on Friday.
Osaka, who was playing American Sofia Kenin, sought treatment on the knee in the third set, then pulled out. Kenin was ahead 6-4 1-6 2-0 at the time.
The injury comes less than two weeks before the start of the U.S. Open, where Osaka is the defending champion.
Aug 16, 2019; Mason, OH, USA; Naomi Osaka (JPN) returns a shot against Sofia Kenin (USA) during the Western and Southern Open tennis tournament at Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-USA TODAY Sports
(Reporting by Gene Cherry in Raleigh, North Carolina, editing by Pritha Sarkar)
Aug 16, 2019; Mason, OH, USA; Naomi Osaka (JPN) reacts against Sofia Kenin (USA) during the Western and Southern Open tennis tournament at Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-USA TODAY SportsAug 16, 2019; Mason, OH, USA; Naomi Osaka (JPN) returns a shot against Sofia Kenin (USA) during the Western and Southern Open tennis tournament at Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-USA TODAY Sports
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