WUHAN, China (AP) — Emma Raducanu retired ill from her first round match of the WTA’s 1,000-level Wuhan Open on Tuesday.

The British No.1 and former U.S. Open champion had her blood pressure checked and temperature taken in her match against American Ann Li.

Li was winning 6-1 4-1 when Raducanu retired and will play No.9 seed Ekaterina Alexandrova in the second round.

Naomi Osaka dropped the first set before rallying to beat Leylah Fernandez 4-6, 7-5, 6-3 to advance to the second round.

Osaka was back in the central Chinese city for the first time since 2017 and, in the day’s first match on center court, facing the player who produced a major upset to beat her at the 2021 U.S. Open.

Fernandez, who was defeated by Raducanu in the U.S. Open final four years ago, converted one of her two

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