Japan's Yoshihito Nishioka lost to world No. 8 Holger Rune of Denmark in the men's singles first round of the Australian Open tennis tournament Tuesday.

Rune won 6-2, 4-6, 7-6(3), 6-4 at Melbourne Park's Rod Laver Arena. With Nishioka's loss, all seven Japanese have been eliminated from singles play.

Former world No. 1 Naomi Osaka, who is coming back from giving birth to her first child, lost a day earlier to France's Caroline Garcia.

Japan's Yoshihito Nishioka plays in his first-round match against Denmark's Holger Rune at the Australian Open tennis tournament in Melbourne on Jan. 16, 2024. (Kyodo)

Rune converted three of 11 break points, while the left-handed Nishioka took only one of his seven opportunities to break serve.

The 20-year-old Danish star hit 17 aces to Nishioka's four.

Nishioka had come to the first Grand Slam event of the year after missing a pair of tune-up events because of left shoulder and left leg injuries sustained late last year.

"I haven't been able to play enough, so it can't be helped," Nishioka said. "I made a lot of easy mistakes (in the third-set tiebreak). I'm recovering from injuries. I had some positives."

In other first-round action Tuesday, women's top seed Iga Swiatek of Poland defeated American Sofia Kenin 7-6(2), 6-2.

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