INDIAN WELLS: Tallon Griekspoor stunned top-seeded Alexander Zverev 4-6, 7-6 (7/5), 7-6 (7/4) in the second round at Indian Wells on Friday, avenging a devastating loss to the German at Roland Garros last year.

Zverev, the world No. 2 who is heading the field of the prestigious ATP Masters event with No. 1 Jannik Sinner serving a three-month drugs ban, is the first Indian Wells men’s top seed to lose his opening match since Andy Murray in 2017.

It was a cherished win for Griekspoor, who had lost five straight matches — including four last year — to the German.

That included a five-setter at the French Open in which Griekspoor was up a double break in the fifth in a defeat he called “absolute heartbreak.”

“It was such a mental thing. I played so many battles against him and had chances but they all went his way,” said Griekspoor, who claimed his first victory over a top-five player in his 19th attempt.

“I am incredibly proud of myself from this performance and to get it over the line,” the 28-year-old added.

Broken to trail 5-6 in the third set, Zverev saved five match points in a dramatic 12th game, finally converting his fifth break point of the game to force the tiebreaker.

But Griekspoor sealed it on his first chance in the decider.

The defeat in a tension-packed Stadium Court clash continued a lackluster run for Zverev since he fell to Sinner in the Australian Open final. Following that loss he has made early exits at Buenos Aires, Rio de Janeiro and Acapulco.

“I always struggle against him,” Zverev said of Griekspoor. “He played a good match. There’s no question about that. But I have to look at myself a little bit, and it’s nowhere near where I want to be.”

American Marcos Giron joined Griekspoor in posting his first win over a top-five player, upsetting fourth seed Casper Ruud 7-6 (7/4), 3-6, 6-2.

Russian Daniil Medvedev, runner-up to Carlos Alcaraz the past two years, moved on with a 6-2, 6-2 victory over 71st-ranked Bu Yunchaokete of China.

Fifth-seeded Medvedev, bundled up against the cold desert night air with leggings under his shorts and long sleeves, dropped his serve to open the match.

But he broke back immediately and was never seriously threatened despite the wealth of long rallies.

“I’ll be surprised if he had more than five winners in the match,” Medvedev said. “I just knew that I have to put the ball in court and run.”

Iga Swiatek, the women’s defending champion in this combined ATP and WTA 1000 event, eased through her opener 6-2, 6-0 against French veteran Caroline Garcia.

“I’m happy that I was solid until the end, and I’m just happy that I adjusted to the conditions well,” said Swiatek, who played as the late afternoon temperture dropped and the breeze picked up.

“First matches are not easy, and didn’t know what to expect from Caro, but I’m happy that I could dominate from the beginning.”

Swiatek converted six of her nine break points and was broken only once in the 61-minute victory.

Fourth-seeded American Jessica Pegula also powered through, beating Poland’s Magda Linette 6-4, 6-2.

“Honestly, I think it was just handling the conditions,” Pegula said. “I felt like I was able to handle the side with the wind pretty well and really take advantage of using that for my serve ... and then just being a little gritty and digging out some tough points on the side that was against the wind.”

Mirra Andreeva, the 17-year-old Russian, who became the youngest ever WTA 1000 champion in Dubai last month, battled back from 0-4 down in the second set to beat France’s 70th-ranked Varvara Gracheva 7-5, 6-4 in another windblown, error-laden late match.

Andreeva, seeded ninth, booked a third-round meeting with Denmark’s Clara Tauson, the woman she beat in the Dubai final.

Tauson advanced with a 7-6 (7/3), 7-5 victory over Colombian Camila Osorio, who had ousted four-time Grand Slam champion Naomi Osaka in the first round.

INDIAN WELLS, Californa: Two-time Wimbledon champion Petra Kvitova, on the comeback trail seven months after giving birth to a son, was ousted in the first round at Indian Wells on Wednesday by France’s 70th-ranked Varvara Gracheva.

The Czech, who welcomed son Petr last July, was playing her second tournament since her return from an 18-month maternity leave but remains in search of her first match win.

Wednesday’s match looked a lot like her loss to Jodie Burrage in Austin last week, with Kvitova unable to close it out after pocketing the first set.

Gracheva, 24, was full of admiration for her 34-year-old opponent, who lifted the trophy at Wimbledon in 2011 and 2014.

“If you let me step back a little bit, I really want to congratulate her,” Gracheva said. “Because she had a child quite recently, and I’m so happy that she now has the role of a mother and a tennis player, which is very demanding. It’s very inspiring for sports, athletes, women — it’s just amazing.”

All 32 men’s and women’s seeds have first round byes in this combined ATP Masters and WTA 1000 tournament, the first leg of the US hard court “Sunshine Double” that will conclude in Miami.

Gracheva lined up a second-round meeting with ninth-seeded Mirra Andreeva, the 17-year-old Russian who ousted three Grand Slam winners on the way to becoming the youngest ever WTA 1000 champion in Dubai last month.

Former world No. 1 Naomi Osaka, who returned from a 15-month break last year after giving birth to daughter Shai in 2023, headlines the night session taking on Colombian Camila Osorio.

Japan’s Osaka, who won her first WTA title at Indian Wells in 2018, hasn’t played since the Australian Open, where she retired from her third-round match with an abdominal strain.

In other early matches, French veteran Caroline Garcia beat US wild card Bernarda Pera 6-3, 6-4 to line up a second-round meeting with second-seeded defending champion Iga Swiatek.

Poland’s Swiatek, who also lifted the trophy in the California desert in 2022, is vying to become the only woman besides Martina Navratilova in 1990-91 to win back-to-back Indian Wells titles, and the first woman to win more than two.

In men’s action, China’s Bu Yunchaokete defeated American Nishesh Basavareddy 7-5, 6-4 to book a second-round match against Russian fifth seed Daniil Medvedev, the runner-up to Carlos Alcaraz the past two years.

Alcaraz is seeded second as he chases a rare three-peat. Germany’s Alexander Zverev is the top seed in a men’s field that is missing world No. 1 Jannik Sinner as he serves a three-month drugs ban but that includes Serbian star Novak Djokovic — chasing a record sixth title.

Japanese veteran Kei Nishikori, who revealed during the Australian Open that he almost quit tennis last year after lengthy battles with injury, defeated Spain’s Jaume Munar 6-2, 5-7, 7-6 (7/3) to line up a second-round match against 18th-seeded Ugo Humbert of France.

Nishikori was treated for a leg injury in the third set and then soldiered through cramp to close out the victory.

“It was not easy,” Nishikori said. “In the third set I was cramping pretty badly, but somehow I came back and won, so a very good match.”

In other men’s first-round action, Brazilian Thiago Seyboth Wild saved a pair of match points on the way to a 4-6, 7-5, 7-6 (8/6) victory over France’s Alexandre Muller.