Novak Djokovic loses in opening round of US Open for first time, falling in 5 sets to Mariano Navone

NEW YORK (AP) — Novak Djokovic grinded through physical and internal ailments, made one mistake after another and could not find what it took to beat a feisty, younger opponent who was not intimidated under the lights against tennis' most decorated player.

The 39-year-old is out of the U.S. Open after a first-round defeat to Mariano Navone on Sunday night, losing 7-6 (5), 5-7, 4-6, 6-2, 6-1 in a five-set marathon that lasted four hours and 36 minutes. It was the longest opening match of a Grand Slam in Djokovic's career and became his earliest exit in one in two decades, dating to the 2006 Australian Open. He had never lost in the first round at the U.S. Open.

“I didn’t enjoy myself,” Djokovic said. “I think it was obvious that it was an awful feeling on the court for me."

The record holder with 24 major titles threw up at least once and later appeared to be cramping when he grabbed at his left foot. Djokovic swallowed pills brought to him by a doctor and had his lower back massaged during a medical timeout between the fourth and fifth sets, and he grimaced after several shots.

Djokovic made 70 unforced errors in a painful performance that ended mere minutes before midnight.

“It’s something that I’ve been carrying, unfortunately, pretty much every match this year: vomiting, throwing up, a serious issue there,” Djokovic said. "Then my whole body starts to collapse, basically cramping and pain. Yeah, the back just gave up in the end and shoulder, and I couldn’t close it out.”

With this defeat, 21 years to the day of his U.S. Open debut, the question now lingers as to whether this was Djokovic's final match at this or any Grand Slam. After the loss, he said he was “trying to address really what’s going on and how far I can go this way.”

It was clear Djokovic was not himself, and the wear and tear of sickness and soreness took its toll. The No. 4 seed from Serbia cruised to early 3-0 and 4-1 leads before blowing them and losing the first set — the first time that happened to him in the first round of the U.S. Open since ’06.

“Just struggled all the way since the fourth game of the match,” Djokovic said. "When it comes to match itself and overall feeling of how I felt with body and playing, it was really not enjoyable. I pretty much despised every moment that I spent on the court for that.

With his wife, Jelena, watching from the stands with worried looks on her face, Djokovic had moments where he looked like one of the best to play the sport. His fist pump was reserved after winning the second set, and he put his hand to his ear and gestured to the crowd for applause on the way to taking the third.

But Navone — a 25-year-old from Argentina who earlier this year won his first ATP singles title — did not go away.

Neither did the frustration of not being healthy or at his best. After firing a shot wide in the fourth set, Djokovic landed awkwardly and dropped his racket.

Djokovic all but conceded the fourth set. But he was unable to muster enough for the what would have been his 43rd five-set victory as Navone picked up his first, calling it a dream come true.

“(It) was very tough for me because you are playing with the ‘GOAT’ on this court,” said Navone, who idolized Djokovic growing up. “For sure it’s the best thing I’ve had on court. This is an amazing court and the biggest stage. It’s amazing, the way we play. I mean, five sets. ... I’m very happy. I don’t know. What can I say?”

It extended a nightmare stretch for Djokovic, who also lost in the first round at the hardcourt tuneup in Cincinnati earlier this month. That was his first action since losing to top-ranked Jannik Sinner in the semifinals at Wimbledon.

Djokovic expressed hope Saturday that his early exit at Cincinnati gave him more time to prepare for the U.S. Open but acknowledged concern that the first match at any tournament has become challenging for him in recent years. Instead of overcoming the hurdle and building from there, he is left to contemplate an uncertain future.

See AP’s full tennis coverage here

Mariano Navone, of Argentina, returns the ball to Novak Djokovic, of Serbia, during the first round of the U.S. Open tennis championships Sunday, Aug. 30, 2026, in New York. (AP Photo/Frank Franklin II)

Novak Djokovic, of Serbia, gets medical treatment during the first round of the U.S. Open tennis championships against Mariano Navone, of Argentina, Sunday, Aug. 30, 2026, in New York. (AP Photo/Frank Franklin II)

Novak Djokovic, of Serbia, cools off during a break from play in a match against Mariano Navone, of Argentina, during the first round of the U.S. Open tennis championships Sunday, Aug. 30, 2026, in New York. (AP Photo/Frank Franklin II)

Novak Djokovic, of Serbia, reacts on the court during the first round of the U.S. Open tennis championships against Mariano Navone, of Argentina, Sunday, Aug. 30, 2026, in New York. (AP Photo/Frank Franklin II)

Novak Djokovic, of Serbia, reacts during the first round of the U.S. Open tennis championships against Mariano Navone, of Argentina, Sunday, Aug. 30, 2026, in New York. (AP Photo/Frank Franklin II)

FLAGSTAFF, Ariz. (AP) — One person died and about 15 people are missing or unaccounted for after a major flash flood at the Grand Canyon forced evacuations, swept large boulders into the Colorado River and knocked out the sole water pipeline that serves tourists and residents, the National Park Service said Sunday.

The body of a 46-year-old man was recovered Sunday evening near Crystal Rapids along the Colorado River, the park service said without providing additional details. Coroner’s officials were at the scene.

Weekend flooding in Arizona’s Bright Angel Creek, which flows into the river, happened Saturday afternoon. More than 60 people were evacuated from the depths of the canyon. The park service said it had yet to account for 15 people and asked anyone with details about hikers or campers in the canyon to get in touch. The Arizona Department of Public Safety was helping with additional evacuations Sunday.

Because the main water line was out of service, starting Monday tourists won't be able to stay overnight at lodges and hotels within Grand Canyon National Park. Year-round residents are being asked to conserve water.

“These measures are crucial for ensuring the safety and sustainability of water resources,” the park said in a statement.

Parth Desai was hiking through a narrow passage in Bright Angel Canyon with fellow physicians and a park ranger when the downpour started Saturday.

“We saw the creek flood, waterfalls coming up out of nowhere, boulders, mud, landslides happening everywhere,” he said.

Later, as they made their way toward Phantom Ranch, a colleague shouted “Up, Up, Up, Up!” as a 4-foot (1-meter) debris wall headed toward them and they ran up into a patch of cacti, he said. They were rescued by helicopter late Saturday after making it to the Phantom Ranch area, he said.

Torrents of water wiped out footbridges over the creek and altered the landscape, widening the creek bed and extending an existing river rapid or creating a new one. The flood was a major blow to an enduring effort to modernize the pipeline that serves 6 million visitors a year and roughly 1,600 residents of Grand Canyon Village.

“Heaven help us if the whole thing down there at the bottom has to be reconstructed,” said Jack Schmidt, director of the Center for Colorado River Studies at Utah State University. “Where are they going to get the money? It's a nightmare for the park service. And thank God nobody was hurt or killed.”

Halting overnight stays at the park because of a lack of water is rare, although the pipeline frequently has failed over the years.

A $208 million rehabilitation of the pipeline and upgrades to the associated water delivery system started in 2023, with the park service calling it a crucial investment to ensure the park can meet the needs of residents and visitors. The project was expected to be completed next year.

Lodging is still available just outside the park's South Rim entrance station in Tusayan.

Popular tourist spots, including the Bright Angel Campground, the North Kaibab Trail and Phantom Ranch, home to a historic canteen and dormitories, remained closed Sunday.

Erica Viola said she and about 50 other hikers at that campground watched the creek rise Saturday and debris start to flow by, including what looked like a bunkhouse. The helicopter ride out cut her adventure short by two days, she said.

About half an inch to 1 inch (1 to 2.5 cm) of rain fell within about 20 minutes on a rocky slope where there’s a steep drop in elevation, said National Weather Service meteorologist Darren McCollum in Flagstaff. The deluge was preceded by two smaller systems that drenched the area hours earlier.

“So when the main storm moved in, torrential rain fell on everything that was already soaked, and that caused all the problems that we're seeing," McCollum said.

The weather service said the flooding happened on the north side of the Grand Canyon, where Bright Angel Creek comes from the North Rim down to the Colorado River, dropping around 6,000 feet (1,828 meters).

More rain and thunderstorms were possible for the area into Monday.

Stengle reported from Dallas. Jeffrey Collins in Columbia, South Carolina, Holly Ramer in Concord, New Hampshire, and Christopher Weber in Los Angeles also contributed.

This photo shows Grand Canyon National Park in northern Arizona on Sunday, Aug. 30, 2026, after it was hit by heavy flooding a day earlier. (Craig Sanderson via AP)

This photo shows Grand Canyon National Park in northern Arizona on Sunday, Aug. 30, 2026, after it was hit by heavy flooding a day earlier. (Craig Sanderson via AP)

Bright Angel Creek near the Phantom Ranger Station in the Grand Canyon, Arizona, is seen after flash flooding from storms, Saturday, Aug. 29, 2026. (Parth Desai via AP)