Sinner overcomes cramps, heat to continue Australian Open title defense. Djokovic gets 400th win

MELBOURNE, Australia (AP) — Limping and desperately trying to stretch out cramps in his arms and legs, Jannik Sinner had just gone down a break in the third set when the extreme heat rules saved him.

Play was suspended for eight minutes while the roof was closed on Rod Laver Arena on Saturday afternoon, and the two-time defending Australian Open champion returned a revitalized man.

After being on the verge of an unlikely exit — one of his coaches, Darren Cahill, was urging the 24-year-old Italian just to stick it out for a few more games — Sinner won five of the next six games to take the set against No. 85-ranked Eliot Spizzirri.

Another 10-minute "cooling break" between the third and fourth sets followed — an allowance under the extreme heat policy — and Sinner returned for a 4-6, 6-3, 6-4, 6-4 victory that highlighted a dramatic contrast of intense light and shade.

“I struggled physically today. I got lucky with the heat rule," Sinner said, agreeing that the cooler indoor conditions suited him much more than the energy-sapping heat of the first two sets. “I try to stay calm even in a moment like this. If he keeps playing the way he was playing, maybe I was dropping a little bit, maybe my tournament was over today. I don’t know."

Spizzirri was magnanimous about it, adding: “ That’s the rules of the game, and, you know, you got to live with it.”

Novak Djokovic became the first player ever to notch 400 match wins at the majors when he beat Botic van de Zandschulp 6-3, 6-4, 7-6 (4) in a night match.

The 24-time major winner improved his win-loss record to 102-10 at the Australian Open, equaling Roger Federer’s career haul for the most-ever match wins at the season’s first major.

Two-time Australian Open champion Naomi Osaka withdrew because of an abdominal injury before her scheduled third-round match against Australian qualifier Maddison Inglis, ending a campaign noted strikingly for fashion and friction.

That sent Inglis into a fourth-round match against No. 2-ranked Iga Świątek, who had a 6-1, 1-6, 6-1 win over Anna Kalinskaya.

No. 4 Amanda Anisimova beat Peyton Stearns 6-1, 6-4 in an all-American encounter and will next face Wang Xinyu, who upset No. 13 Linda Noskova.

No. 5 Elena Rybakina advanced to a fourth-round match against No. 21 Elise Mertens.

The 40-year-old Stan Wawrinka lost 7-6 (5), 2-6, 6-4, 6-4 to No. 9 Taylor Fritz and then grabbed two beers from a courtside ice box, cracked the cans with the tournament director and bid farewell to the crowd. “Cheers everybody! ” he said.

Fritz will next face No. 5 Lorenzo Musetti, who held off Tomas Machac 5-7, 6-4, 6-2, 5-7, 6-2 to become the third Italian man to reach the fourth round.

No. 8 Ben Shelton beat Valentin Vacherot of Monaco, 6-4, 6-4, 7-6 (5) on Margaret Court Arena and said having the roof closed “just amplified the noise.”

The 37-year-old Marin Cilic, U.S. Open champion in 2014 and Australian Open runner-up four years later, lost in four sets to father-to-be Casper Ruud.

An earlier start than usual on Day 7 was no worries for defending champion Madison Keys and Jessica Pegula. No. 9-seeded Keys beat Karolina Pliskova 6-3, 6-3 and No. 6 Pegula defeated Oksana Selekhmeteva 6-3, 6-2.

Next up for the two Americans, and podcast pals, is a fourth-round encounter against each other.

Play was suspended on outside courts for five hours from the mid-afternoon until around 7:30 p.m. local time.

The temperature was around 35 degrees Celsius (95 Fahrenheit) when the tournament’s so-called heat scale hit a maximum of 5 in the mid-afternoon. The temperature Saturday didn’t quite reach the forecast maximum of 40 degrees Celsius (104 Fahrenheit). The maximum forecast for Sunday is 24 C (75 F).

Sinner will next play fellow Italian Luciano Darderi, who beat No. 15 Karen Khachanov 7-6 (5), 3-6, 6-3, 6-4.

Reflecting on his drama at 3-1 down in the third set, the No. 2 seed said he was just trying to survive.

“It started with the legs. Got to the arms. I was cramping a bit all over,” Sinner said. “This is an area I know I need to improve.”

In the second set, Sinner was given a rare time violation by chair umpire Fergus Murphy as he was preparing to serve. In a show of sportsmanship, Spizzirri intervened, approaching the umpire and saying he hadn't been ready to receive.

He had the crowd on his side, until Sinner's movement became visibly wobbly.

Under the roof — with the glare gone, the temperature easing across the third and fourth sets and the radiated heat from the court plummeting — the momentum swung.

“I don’t know if he got saved by it,” Spizzirri said. “I smiled a little bit when the heat rule went into effect, just because it was kind of funny timing. But at the same time, the game at 2-1 in the third set was when it hit, I think it’s 5 (on the heat scale), which means that the heat rule is in effect. So whenever that game was over, whether I broke or whether he held, we were going to close the roof.”

Iga Swiatek of Poland reacts after defeating Anna Kalinskaya of Russia in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Aaron Favila)

Stan Wawrinka of Switzerland holds up a beer following his third round loss to Taylor Fritz of the U.S. at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Asanka Brendon Ratnayake)

FILE - Naomi Osaka of Japan walks onto Rod Laver Arena for her first round match against Antonia Ruzic of Croatia at the Australian Open tennis championship in Melbourne, Australia, Tuesday, Jan. 20, 2026. (AP Photo/Asanka Brendon Ratnayake, File)

Novak Djokovic of Serbia reacts after defeating Botic van de Zandschulp of the Netherlands in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Jannik Sinner, left, of Italy walks from the court with Eliot Spizzirri of the U.S. after winning their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dar Yasin)

Eliot Spizzirri of the U.S. plays a backhand return to Jannik Sinner of Italy during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Jannik Sinner of Italy receives treatment from trainers during his third round match against Eliot Spizzirri of the U.S.at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Jannik Sinner of Italy rests at his coaching box during his third round match against Eliot Spizzirri of the U.S. at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Jannik Sinner of Italy takes a drink during his third round match against Eliot Spizzirri of the U.S. at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Amanda Anisimova of the U.S. plays a backhand return to compatriot Peyton Stearns during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Aaron Favila)

Jessica Pegula, left, of the U.S. is congratulated by Oksana Selekhmeteva of Russia following their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Aaron Favila)

Madison Keys, left, of the U.S. is congratulated by Karolina Pliskova, right, of the Czech Republic following their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Madison Keys of the U.S. waves after defeating Karolina Pliskova of the Czech Republic in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

Naomi Osaka of Japan walks onto court for her second round match against Sorana Cirstea of Romaniaat the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 22, 2026. (AP Photo/Dita Alangkara)

Ben Shelton of the U.S. reacts after defeating Dane Sweeny of Australia during their second round match at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 22, 2026. (AP Photo/Asanka Brendon Ratnayake)

Oksana Selekhmeteva of Russia serves to Jessica Pegula of the U.S. during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Aaron Favila)

Jessica Pegula of the U.S. plays a backhand return to Oksana Selekhmeteva of Russia during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Aaron Favila)

Madison Keys of the U.S. plays a forehand return to Karolina Pliskova of the Czech Republic during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 24, 2026. (AP Photo/Dita Alangkara)

HELSINGBORG, Sweden (AP) — NATO allies and defense officials expressed bewilderment Friday at U.S. President Donald Trump’s announcement that he would send 5,000 U.S. troops to Poland just weeks after ordering the same number of forces pulled out of Europe.

The apparent change of mind came after weeks of statements from Trump and his administration about reducing — not increasing — the U.S. military footprint in Europe. Trump's initial order set off a flurry of action among military commanders and left allies already doubtful about America's commitment to Europe's security to ponder what forces they might have to backfill on NATO's eastern flank with Russia and Ukraine.

Earlier this month, the Trump administration said it was reducing levels in Europe by about 5,000 troops, and U.S. officials confirmed about 4,000 service members were no longer rotating into Poland from Germany. The dispatch to Germany of U.S. personnel trained to fire long-range missiles was also halted.

But in a post on Truth Social on Thursday, Trump said he would now send "an additional 5,000 Troops to Poland,” citing his strong ties with Polish President Karol Nawrocki, whom Trump endorsed in elections last year.

“It is confusing indeed, and not always easy to navigate,” Swedish Foreign Minister Maria Malmer Stenergard told reporters Friday at a meeting she was hosting of her NATO counterparts, including U.S. Secretary of State Marco Rubio.

Ministers from the Netherlands and Norway were sanguine about Trump’s latest move, as was Latvian Foreign Minister Baiba Braže, who said allies knew the U.S. troop “posture was being reconsidered, and now there is no change of posture. For now.”

U.S. defense officials also expressed confusion. “We just spent the better part of two weeks reacting to the first announcement. We don’t know what this means either,” said one of two officials who spoke on condition of anonymity to discuss sensitive military matters.

But Rubio said Washington’s allies understand that changes in the U.S. troop presence in Europe will come as the Trump administration reevaluates its force needs. “I think there’s a broad recognition that there are going to be eventually less U.S. troops in Europe than there has historically been for a variety of reasons,” he said.

The latest surprise came despite a U.S. pledge to coordinate troop deployments, including one from NATO’s top military officer, U.S. Lt. Gen. Alex Grynkewich, on Wednesday.

Trump's initial announcement that he would withdraw troops came as he fumed over remarks by German Chancellor Friedrich Merz, who said that the U.S. was being “humiliated” by the Iranian leadership and criticized what he called a lack of strategy in that war.

Trump told reporters that the U.S. would be cutting even more than 5,000 and also announced new tariffs on European cars. Germany is the continent’s biggest auto producer.

Rubio insisted that Trump’s decision “is not a punitive thing. It’s just something that’s ongoing.”

About 80,000 U.S. troops are stationed in Europe. The Pentagon is required to keep at least 76,000 troops and major equipment on the continent unless NATO allies are consulted and there is a determination that such a withdrawal is in U.S. interests.

The withdrawal of 5,000 troops might drop numbers below that limit.

But Trump's latest post suggests that troop numbers in Europe would not change. Polish Foreign Minister Radek Sikorski welcomed the decision to send more forces to his country, saying it ensures that “the presence of American troops in Poland will be maintained more or less at previous levels.”

NATO Secretary-General Mark Rutte also welcomed the move. On Thursday, before Trump took to Truth Social again, Rutte had underlined that it was important for Europe to take care of its own security. “We have a process in place. This is normal business,” he told reporters.

At NATO headquarters in Brussels, meanwhile, U.S. officials briefed the allies on the Pentagon's aims for its commitments to the NATO Force Model, which involves contingency planning for Europe’s defense in the event of serious security concerns. It was widely expected that a further reduction of U.S. forces would be coming.

Asked whether any cuts were announced, Rutte said: “I’m afraid it’s much more complicated than that.” He said the procedure “is highly classified” and declined to give details.

Rubio played down concerns about a shift in U.S. force levels in Europe, saying: "Every country has to constantly reevaluate what their needs are, what their commitments are around the world, and how to properly structure that.”

Cook reported from Brussels. Associated Press writer Emma Burrows in London contributed.

United States Secretary of State Marco Rubio speaks with journalists during a meeting of NATO foreign ministers in Helsingborg, Sweden, Friday, May 22, 2026. (AP Photo/Julia Demaree Nikhinson, Pool)

United States Secretary of State Marco Rubio, front second left, and NATO Secretary General Mark Rutte, front left, speak with each other during a group photo at a meeting of NATO foreign ministers in Helsingborg, Sweden, Friday, May 22, 2026. (AP Photo/Julia Demaree Nikhinson, Pool)

United States Secretary of State Marco Rubio, left, and NATO Secretary General Mark Rutte look at each other as they deliver a statement during a meeting of NATO foreign ministers in Helsingborg, Sweden, Friday, May 22, 2026. (AP Photo/Julia Demaree Nikhinson, Pool)

Latvian Foreign Minister Baiba Braže speaks at the doorstep of the NATO foreign ministers' meeting at Sea U in Helsingborg, Sweden, Friday, May 22, 2026. (Johan Nilsson/TT News Agency via AP)

United States Secretary of State Marco Rubio, left, and NATO Secretary General Mark Rutte deliver a statement during a meeting of NATO foreign ministers in Helsingborg, Sweden, Friday, May 22, 2026. (AP Photo/Julia Demaree Nikhinson, Pool)

NATO Secretary General Mark Rutte speaks to media at the NATO Foreign Ministers' meeting in Helsingborg, Sweden, Friday, May 22, 2026. (Johan Nilsson/TT News Agency via AP)

Secretary of State Marco Rubio arrives with his wife Jeanette at Malmo Airport, Friday, May 22, 2026, in Malmo-Sturup, Sweden, ahead of a NATO foreign ministers meeting. (AP Photo/Julia Demaree Nikhinson, Pool)

NATO Secretary General Mark Rutte, second from left, shakes hands with Prime Minister of Sweden Ulf Kristersson, as he is greeted by King Carl Gustaf of Sweden, Queen Silvia of Sweden and Minister for Foreign Affairs of Sweden Maria Malmer Stenergard, right, before a dinner at Sofiero Castle in Helsingborg, Sweden, Thursday May 21 2026. (Johan Nilsson/TT News Agency via AP)

Swedish Foreign Minister Maria Malmer Stenergard speaks to media at the NATO Foreign Ministers' meeting in Helsingborg, Sweden, Friday, May 22, 2026. (Johan Nilsson/TT News Agency via AP)