MELBOURNE, Australia (AP) — Zheng Qinwen's tennis resume is quite different from what it was when she showed up at the Australian Open a full year ago. No matter everything she accomplished in 2024 — a runner-up finish at Melbourne Park; an Olympic gold medal for China — she felt jitters before entering Rod Laver Arena on Sunday.

After overcoming some hiccups late in the opening set of her first-round match on a stormy Day 1 at the season's first major tennis tournament, Zheng came through with a 7-6 (3), 6-1 victory against Anca Todoni, a 20-year-old qualifier from Romania who has won one Grand Slam match in her career.

“Actually, I feel really nervous,” said Zheng, who is seeded No. 5. “I started to feel nervous already since yesterday, ’cause I felt special emotion for the Australian Open. ... I really like it here.”

As well she should.

It was 12 months ago on Melbourne's hard courts that Zheng made it all the way to the final before losing to Aryna Sabalenka. The two-time champion began her bid for a third consecutive title with a 6-3, 6-2 victory over 2017 U.S. Open title winner Sloane Stephens. Alexander Zverev, the men's No. 2 seed, defeated Lucas Pouille 6-4, 6-4, 6-4 in the last match at Rod Laver Arena.

Two of the first three men's contests to conclude both went five sets. Kei Nishikori, the 2014 U.S. Open runner-up, saved a pair of match points in the third set and came all the way back to beat qualifier Thiago Monteiro 4-6, 6-7 (4), 7-5, 6-2, 6-3, while No. 6 Casper Ruud, a three-time finalist at majors, defeated Jaume Munar 6-3, 1-6, 7-5, 2-6, 6-1.

Nishikori, competing in Melbourne for the first time in four years after a series of hip, ankle and knee injuries, raised his arms and threw his head back, causing his black hat to fall off, after improving to 29-8 in five-setters, including 8-1 at the Australian Open.

Before her run in Australia last January, Zheng had only played in eight major tournaments, making one quarterfinal. Her big-hitting breakthrough opened a season in which she wound up with a gold draped around her neck at the Paris Games in August.

The 22-year-old Zheng's power-based game is best suited for hard courts, and playing indoors doesn't hurt, either, so she eventually was quite comfortable against Todoni under a closed retractable roof, while thunder and lightning and a serious downpour suspended action on the courts that can't be covered.

Still, Zheng frittered away set points while serving for the opener at 5-4, then was forced to save set points for Todoni later. Afterward, Zheng said that being nervous usually makes her focus better, but this time, it didn't make “me play my best tennis out there.”

Maybe that's because it was her first match of the season. Still, she was good enough on this day.

The second set was more one-sided, and Todoni took a medical timeout for treatment on her lower back after three games.

Zheng was among only a handful of players able to complete matches in the early going at what is now a 15-day tournament after a Sunday start was instituted last year. That extra time, which spreads out the first round across three days, could be particularly helpful this week, when Monday's packed program already included matches for Novak Djokovic, Jannik Sinner, Carlos Alcaraz, Coco Gauff and Iga Swiatek.

No. 29 Linda Noskova was the first seeded player to exit the bracket, just a year after she stunned Iga Swiatek in Melbourne. Noskova lost 5-7, 6-3, 6-4 to Clara Tauson, while seeds who won Sunday included No. 11 Paula Badosa; No. 14 Mirra Andreeva, No. 18 Donna Vekic; and No. 30 Leylah Fernandez, the 2021 U.S. Open runner-up.

“To be able to play a match and to finish a match with a roof, it’s much more easy than ... to stop with the rain,” said the 20th-seeded man, Arthur Fils, who eliminated Otto Virtanen of Finland 3-6, 7-6 (4), 6-4, 6-4. “So, yeah, it’s a nice treatment.”

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A spectator runs as play is suspended for rain during first round matches at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Manish Swarup)

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Aryna Sabalenka, left, of Belarus is congratulated by Sloane Stephens of the U.S. following their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Alexander Zverev of Germany plays shot back between his legs to Lucas Pouille of France during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Kei Nishikori of Japan reacts after defeating Thiago Monteiro of Brazil during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025.(AP Photo/Asanka Brendon Ratnayake)

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Casper Ruud of Norway plays a backhand return to Jaume Munar of Spain during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Zheng Qinwen of China plays a forehand return to Anca Todoni of Romania during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Anca Todoni of Romania receives treatment from a trainer during her first round match against Zheng Qinwen of China at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Mirra Andreeva of Russia plays a forehand return to Marie Bouzkova of the Czech Republic during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Ng Han Guan)

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Spectators wait under umbrellas as rain suspends play during first round matches at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025.(AP Photo/Manish Swarup)

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Donna Vekic of Croatia reacts during her first round match against Diane Parry of France at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Asanka Brendon Ratnayake)

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Donna Vekic of Croatia signs autographs after defeating Diane Parry of France in their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Asanka Brendon Ratnayake)

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Zheng Qinwen of China plays a backhand return to Anca Todoni of Romania during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Vincent Thian)

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Spectators wait under umbrellas as rain suspends play during first round matches at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Manish Swarup)

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Mirra Andreeva of Russia waves after defeating Marie Bouzkova of the Czech Republic during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Ng Han Guan)

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Leylah Fernandez of Canada plays a backhand return to Yuliia Starodubtseva of Ukraine during their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Asanka Brendon Ratnayake)

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Spectators wait under umbrellas as rain suspends play during first round matches at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Asanka Brendon Ratnayake)

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Arthur Fils of France reacts after winning his first round match against Otto Virtanen of Finland at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Asanka Brendon Ratnayake)

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Paula Badosa of Spain celebrates after defeating Wang Xinyu of China in their first round match at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 12, 2025. (AP Photo/Ng Han Guan)

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