Carlos Alcaraz, the 2022 US Open, bowed out in straight sets to Dutchman Botic van de Zandschulp.
The match on the Louis Armstrong Stadium officially lasted just six minutes.
World number two Novak Djokovic is now the only man to have won 90 matches at all four Grand Slams.
Caroline Garcia, an 11-time WTA champion who reached the US Open semi-finals in 2022, fell to 92nd-ranked Renata Zarazua in the first round
Stan Wawrinka, the 2016 champion, failed in his bid to become only the third man in last 50 years to win a main draw match at the tournament at the age of 39 or over.
The Day 2 of US Open 2024 will be packed with some intense matches as Jannik Sinner, Carlos Alcaraz and Naomi Osaka start their campaigns.
The four-time US Open champion, Novak Djokovic, playing for the first time since claiming Olympic gold two weeks ago, defeated the Moldovan qualifier 6-2, 6-2, 6-4.
Defending champions Novak Djokovic and Coco Gauff will headline the opening day of the US Open tournament in New York.
Novak Djokovic and Coco Gauff are the defending US Open champions as tennis calendar reaches last major of the year.
World No. 1 Jannik Sinner escaped a ban despite two positive dope tests this year.
Carlos Alcaraz won his first major title at Flushing Meadows in 2022. He's piled up three more since, including this year's French Open and Wimbledon.
Jannik Sinner tested positive for low levels of the banned anabolic agent clostebol in March -- once during the Indian Wells Masters and again in an out-of-competition test eight days later.
World number 17 Jabeur, who was runner-up to Iga Swiatek in the 2022 final in New York, has been struggling with a shoulder injury.
The draw raises the prospect of a possible semi-final clash between Sinner and Alcaraz who in 2022 produced an epic five-hour 15-minute quarter-final which concluded at 2:50 a.m.
US Open gets underway on August 26 with Novak Djokovic and Coco Gauff the defending champions.
Darren Cahill said there was no question of Jannik Sinner trying to gain advantage through the use of a banned substance.
Jannik Sinner twice tested positive for clostebol in March, a substance on WADA's prohibited list, but was allowed to compete and will not be suspended.
After five successful seasons, the Tennis Premier League is hot on the heels of the IPL in terms of fanfare, and brings tennis to the fans, in an entertaining 25-point format.
Sinner provided an in-competition sample at the Indian Wells Masters on 10 March, 2024 which contained the presence of a metabolite of clostebol at low levels, according to the ITIA.
Jannik Sinner and Aryna Sabalenka triumphed at the ATP-WTA Cincinnati Open with wins over Americans Frances Tiafoe and Jessica Pegula respectively.
In an exclusive interaction with Firstpost, Somdev Devvarman, who played in the 2012 London Olympics, speaks about the current state of Indian tennis, tennis at the recently-concluded Paris Olympics, the Novak Djokovic vs Carlos Alcaraz rivalry, India’s overall performance at the Games and more.
In the final Monday, Sinner will play American Frances Tiafoe, and Sabalenka will meet American Jessica Pegula.
Sinner prevented rival Andrey Rublev from repeating a triumph from last Saturday in Montreal as he defeated the sixth seed in a 4-6, 7-5, 6-4 fightback. Swiatek did the same in the women's draw as she worked to overcome teen Mirra Andreeva 4-6, 6-3, 7-5.
Trailing 3-1 in the tiebreaker when the match was halted, Alcaraz was hoping for a reset when play resumed Friday. But, the No. 3 player in the ATP rankings wasn't able to control his emotions.
United States Tennis Association (USTA) issued wildcards to former champions Naomi Osaka, Dominic Thiem, Stan Wawrinka and Bianca Andreescu for US Open 2024.
Zeeshan Ali, 54, has been in the role since 2013 when he had replaced Nandan Bal ahead of the tie against South Korea in New Delhi.
Alexei Popyrin is the first Australian to win a Masters 1000 title since Lleyton Hewitt in 2003 at Indian Wells.
Jessica Pegula captured her sixth career WTA title, second of the year to become the first consecutive winner in Canada since Martina Hingis
Rafael Nadal will have missed four of the past five tournaments at US Open, the exception being his run to the fourth round in 2022.
Mirra Andreeva and Diana Shnaider lost the final to Sara Errani and Jasmine Paolini of Italy 2-6, 6-1, 10-7 in a match tiebreaker. Olympics doubles uses a first-to-10 tiebreaker instead of a standard third set.