Jannik Sinner was in ominous form on the Rod Laver Arena court he has ruled for two years before the match was cut short.
Defending champion Jannik Sinner scorched American eighth seed Ben Shelton 6-3, 6-4, 6-4 and moved into the Australian Open semi-finals.
Jannik Sinner brushed aside heat concerns to reach the Australian Open quarter-finals, while Iga Swiatek ended home hopes by overpowering Maddison Inglis in Melbourne.
Canada's Felix Auger-Aliassime came from a set down to earn his first victory at this year's ATP Finals in Turin with a 4-6, 7-6(7), 7-5 win over American Ben Shelton on Wednesday.
American fourth seed Ben Shelton battled from a set down to clinch his first ATP Masters 1000 title at the Canadian Open in Toronto on Thursday.
Shelton blasted an ace on match point to seal the win and avenge his five-set loss to Tiafoe at last year's U.S. Open as the 22-year-old continues to make strides in his breakout season.
Canadian Open champion Shelton was locked in an entertaining contest with Frenchman Adrian Mannarino in the day's opening match on Louis Armstrong Stadium when his tournament suddenly unravelled.
Fritz, Shelton lead American charge at US Open with first-round wins
Novak Djokovic was given an early scare but continued his bid for a record-equalling eighth Wimbledon trophy and standalone 25th Grand Slam title by beating Italian Flavio Cobolli.
Zverev and Shelton tested each other in a high-quality encounter before the world number three played a near flawless tiebreak to clinch the match in little over two hours and stretch his career win-loss record over the American to 3-0.
The opening Grand Slam of the year begins at Melbourne Park on Sunday.
Talk about a man in a hurry -- 10th seed Ben Shelton required just 55 seconds to finish off Australian Rinky Hijikata and reach the Wimbledon third round on Friday.
Shelton was broken in the opening and closing games of the first set, unable to take advantage of a break point at 2-1 down while Sinner was always capable of pulling out an ace at the crucial time, hitting two in that fourth game to hold serve.
Novak Djokovic's quest for a record Grand Slam title continued in dramatic circumstances after fifth seed Lorenzo Musetti quit their Australian Open quarter-final match with an injury after taking a two-set lead at Melbourne Park on Wednesday.
Canada's Felix Auger-Aliassime reached the last four of the ATP Finals with a 6-4, 7-6(4) round-robin win over two-times winner Alexander Zverev on Friday and Jannik Sinner extended his indoor hardcourt unbeaten run by beating American Ben Shelton.
While Sinner is into his fifth Grand Slam semi-final, Shelton, who turned pro in 2022, is set to play just his second after reaching the last four at the 2023 US Open.
Carlos Alcaraz began his bid for a first ATP Finals trophy with a win over Alex de Minaur and Alexander Zverev overpowered Ben Shelton in their round-robin openers.
Ben Shelton said uncharacteristic errors at crucial moments had proved costly during his Australian Open semi-final loss against defending champion Jannik Sinner.
'I've been a little bit shocked this week with how players have been treated by the broadcaster.'
IMAGES from the Australian Open matches played at Melbourne Park in Melbourne on Thursday.
Defending champion Jannik Sinner dismissed eighth seed Alex de Minaur 6-3, 6-2, 6-1 to reach the Australian Open semi-finals and extend the country's decades-long wait for another homegrown singles winner at the Grand Slam on Wednesday.
Jannik Sinner kept alive his dream of becoming the first Italian to lift three Grand Slam singles trophies.
Jannik Sinner and Carlos Alcaraz are poised to reignite their rivalry at the ATP Finals, with the year-ending championship that begins on Sunday expected to produce another title showdown between the pair in a season that has belonged to them.
Defending champion Jannik Sinner reached the semi-finals of the ATP Finals with a 6-4, 6-3 win over two-times winner Alexander Zverev on Wednesday, with Ben Shelton eliminated after losing earlier to Felix Auger-Aliassime in the same group.
Alcaraz off to winning start at ATP Finals with win over De Minaur
Jannik Sinner and Carlos Alcaraz are among the world's top players calling for the Davis Cup to return to its traditional home-and-away format and be staged over two years, a proposal backed by ATP chairman Andrea Gaudenzi.
Jannik Sinner began his bid to retain the ATP Finals title with a resounding 7-5, 6-1 win over injury-hit Canadian Felix Auger-Aliassime in their round-robin clash.
Zheng Qinwen saw off a spirited challenge from Diana Shnaider to secure a hard-fought 7-6(5), 6-3 win in their Pan Pacific Open semi-final on Saturday and set up a title clash against American Sofia Kenin.
Novak Djokovic's battling victory under the lights of Arthur Ashe Stadium made him the oldest man to reach the last 16 at the US Open.
Twice defending champion Jessica Pegula crashed out of the Canadian Open after losing to Anastasija Sevastova 3-6, 6-4, 6-1 in the third round on Friday, while six-times major winner Iga Swiatek marched on with a dominant 6-2, 6-2 win over Eva Lys.
Second seed Coco Gauff overcame early problems on serve to cruise past China's Wang Xinyu 6-3, 6-2, keeping her composure despite eight double faults in the first set to book a meeting with Ukraine's Dayana Yastremska in the third round.
The 20-year-old will need all of his weapons on Friday if he is to stand a chance in his first meeting with Djokovic.
Mboko saved a match point against Kazakh ninth seed Rybakina in front of adoring home support
It marks Osaka's first WTA 1000 semi-final since Miami in 2022, as the Japanese former world number one needed just over an hour to secure victory over the 10th seeded Svitolina.
'I tried to calm myself as I was mad, angry and talking not really good things. I'm really happy not to let those thoughts play against me.'
IMAGES from Day 1 of the US Open matches played at Flushing Meadows, New York on Sunday.
Shelton first through to quarters as action heats up at U.S. Open
Novak Djokovic reached the Wimbledon quarter-finals for the 16th time but it proved a hard day's work at his Centre Court office.
Defending champion Jannik Sinner swept past Felix Auger-Aliassime 6-0, 6-2 on Thursday to reach the Cincinnati Open semi-finals, the world number one extending his hardcourt winning streak to 25 matches.
Defending champion Jannik Sinner and Carlos Alcaraz are aiming for a third successive Grand Slam final meeting when they take their high-voltage rivalry to the US Open while Novak Djokovic looks to foil the new generation as he hunts a 25th major.