Tokyo Olympics | Naomi Osaka knocked out of tennis singles third round

The second-ranked Osaka struggled with her usually reliable groundstrokes.

Naomi Osaka of Japan reacts during her third round match against Marketa Vondrousova of Czech Republic

The host country’s superstar Naomi Osaka lost to former French Open finalist Marketa Vondrousova of the Czech Republic 6-1 6-4 in the third round of the Tokyo tennis tournament on Tuesday.

The second-ranked Osaka, who was born in Japan and grew up in the United States, struggled with her usually reliable groundstrokes.

The 42nd-ranked Vondrousova produced a series of drop-shot winners and other crafty shots that drew Osaka out of her comfort zone.

Osaka won her opening two matches in straight sets following a two-month mental-health break. But conditions were different on Tuesday with the roof closed because it was raining outside.