Coco Gauff loses an argument with the chair umpire and a match to Donna Vekic at the Paris Olympics

PARIS — The scene felt all too familiar to Coco Gauff. An officiating decision she was sure was wrong. A chair umpire who wouldn't listen. Tears streaming down her cheeks. And, most disappointing of all, a loss, this time at the Paris Olympics.

Even the site was the same: Court Philippe Chatrier was where the reigning U.S. Open champion was eliminated in the third round at the Summer Games by Donna Vekic of Croatia 7-6 (7), 6-2 on Tuesday. That's also the main stadium used annually for the French Open, where Gauff found herself in a nearly identical dispute over a call while being defeated by eventual champion Iga Swiatek in the semifinals last month.

''There's been multiple times this year where that's happened to me — where I felt like I always have to be an advocate for myself on the court,'' Gauff said afterward, renewing a call for video review to be used in tennis, as it is in many other professional sports.

''I felt that he called it before I hit, and I don't think the ref disagreed,'' she said. ''I think he just thought it didn't affect my swing, which I felt like it did.''

Gauff is one of the biggest stars at the 2024 Paris Games, a 20-year-old from Florida who was seeded No. 2 at the Olympics in singles and was the female flag bearer for the United States during the opening ceremony on Friday.

Later Tuesday, Gauff returned to the court with U.S. teammate Taylor Fritz and won a first-round mixed doubles match, 6-1, 6-7 (6), 10-5 against Nadia Podoroska and Maximo Gonzalez of Argentina to get to the quarterfinals. Gauff also is competing in women's doubles at the Paris Olympics with Jessica Pegula.

''At the end of the day, if anything, doubles make you want to go out there more. You don't want to ruin someone else's chances based off your mentality,'' Gauff said. ''Taylor and I were talking about it earlier: A medal is a medal. I have two other events I can possibly do that in, so I'm just focused on that.''

By the time the disputed call happened two games from the end of the match, Gauff was way behind.

She hit a serve and Vekic's return landed near the baseline. A line judge initially called Vekic's shot out; Gauff did not keep the ball in play. Chair umpire Jaume Campistol thought Vekic's shot landed in and awarded her the point, giving her a service break and a 4-2 lead.

Gauff walked over to talk to the official and play was delayed for several minutes.

"I never argue these calls. But he called it out before I hit the ball," Gauff said to Campistol. ''It's not even a perception; it's the rules.''

She easily won her first two singles matches, dropping a total of just five games. But her first Olympic singles tournament ended with a performance that was hardly her best on the hottest day of the Summer Games so far, with the heat rising above 90 degrees Fahrenheit (32 Celsius).

Even before the trouble over the umpiring decision, Gauff could not sustain a good start against Vekic, who was a semifinalist at Wimbledon this month.

The American led 4-1 and was a point from moving ahead 5-1 and serving for the opening set. But she didn't close the deal, then wasted a couple of set points at 6-4 in the ensuing tiebreaker. Vekic surged to the end of that set, then maintained her level in the second.

One measure of Vekic's superiority on this afternoon: She finished with 33 winners to just nine for Gauff.

''I'm not going to sit here and say one point affected the result today,'' Gauff acknowledged, "because I was already on the losing side of things.''

Still, the most memorable moment in the match was that second-set argument. Gauff even alluded to that Swiatek loss while talking to Campistol and a supervisor who joined the conversation on the court Tuesday.

Vekic, who advanced to the quarterfinals, did not get involved, staying at her end of the court and fiddling with her strings.

''It's a very tricky situation. I personally thought the umpire made a good decision, because the call came quite late,'' Vekic said when asked afterward about what happened. ''But I'll have to rewatch it. It's tough to know exactly in the moment.''

When Gauff gave up and headed back on court to resume play, fans booed loudly — anger directed at the official.

The first point of the next game went Gauff's way, and spectators cheered wildly for her.

But about 10 minutes later, the match was over.

''I want,'' Gauff said Tuesday, ''to come home with something.''

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