PARIS — Novak Djokovic experienced the lowest of lows — pulling out of the French Open after tearing the meniscus in his right knee — and the highest of highs — winning a long-sought Olympic gold medal for Serbia — at Roland Garros last year. This latest trip to Paris went smoothly, once he got going.

Other than some interruptions to the first set by, and lengthy discussions about, the windy, wet weather, the 24-time major champion was unbothered during a 6-3, 6-3, 6-3 victory over 98th-ranked Mackenzie McDonald of the United States at Court Philippe Chatrier in the first round.

"He makes it seem like a video game, almost, for him," said McDonald, a 30-year-old Californian who played college tennis at UCLA and has twice been to the fourth round at Grand Slam tournaments.

"He's able to just do so much. I don't even think he was playing his best tennis or at his highest level. But, if I pushed him to a different point, he would bring it up."

One example: When McDonald earned his first break points, getting to love-40 at 3-2 in the second set, Djokovic came up with three big serves, a 193 km/h ace, a 199 km/h ace and a 197 km/h service winner.

Djokovic compiled 32 winners — 18 more than McDonald — and just 20 unforced errors in a match that eventually was played with the lights on and the retractable roof closed.

"I'm a competitor, and losing stings," McDonald said, "but playing Novak on that court is something I'll remember."

Before Djokovic, who just turned 38 and won his 100th career title last weekend, walked onto the playing surface, he was identified by the stadium announcer by his total number of Slam trophies, the three he's won at the French Open, and the Summer Games gold he won "here in Paris".

"I still remember last year's Olympic Games. It was the last time I was here," Djokovic said afterward.

"The emotion is very strong."

The medal that means so much to him?

"I don't have the medal with me. But I have a picture of the medal in my bag," he said.

"The medal is with my father. My dad likes trophies more than I do, so I gave him mine."

Elsewhere at the French Open on Tuesday, once Coco Gauff found her rackets — a relatively important piece of equipment for a tennis player — all went well for her in the first round.

Gauff showed up on court, opened her bag and peered inside to find the main tools of her trade were missing. The start of the warm-up was delayed, but then everything went Gauff's way, and the 2023 US Open champion strolled past Olivia Gadecki 6-2, 6-2.

Unseeded American Alycia Parks, ranked 52nd in the world, beat No 14 seed Karolina Muchova 6-3, 2-6,6-1 in the women's last match of the day. Muchova was the runner-up to Iga Swiatek at Roland Garros in 2023.

Other winners included the No 3 seeds, Jessica Pegula and Alexander Zverev, and 18-year-old Mirra Andreeva, but 2021 US Open champion Daniil Medvedev, who was seeded 11th, lost to Cameron Norrie 7-5, 6-3, 4-6, 1-6, 7-5 over nearly four hours. Other seeded men were sent home when 18-year-old Joao Fonseca dispatched No 30 Hubert Hurkacz 6-2, 6-4, 6-2, and when No 16 Grigor Dimitrov quit while leading American qualifier Ethan Quinn two sets to one. This is the fourth consecutive major tournament at which Dimitrov has retired.

One of the home hopes, Gael Monfils, rallied from two sets down and beat Hugo Dellien of Bolivia 4-6, 3-6, 6-1, 7-6 (4) 6-1, in a match that lasted more than three hours.

Monfils was injured on the fifth point of the match, when he fell and crashed into a side billboard.

The 38-year-old was moving to his right as he returned a shot into the net. He scraped his hands trying to break his fall and required a few minutes of medical treatment before play resumed.

Monfils, ranked 42nd in the world, and with a history of right knee and leg injuries, was a point away from breaking the 90th-ranked Dellien's serve and ended up losing the game, going behind 3-0 in the first set.

After dropping the second set, Monfils battled back and, helped by a 19-2 advantage in aces, advanced to the second round.

The second round begins on Day 4, with a schedule that includes defending champions Swiatek and Carlos Alcaraz, 2024 runner-up Jasmine Paolini and two-time finalist Casper Ruud.

Swiatek meets 2021 US Open champion Emma Raducanu in the day session's last match in the main stadium.

AGENCIES VIA XINHUA