Players from the Philippines and Hong Kong will be on the schedule for the second round of a Grand Slam for the first time this week, as the U.S. Open sees the impact of an increasingly global game.
The tournament's once-robust pool of around 300 line judges has been cut to 80 and they will serve as "match assistants", who support chair umpires and step in should the ELC -- powered by more than 450 cameras -- fail in any of the 18 courts in use.
Electronic line calling systems were also affected by the power cut, the ATP said, while spectators shared pictures of dark hallways at the Manzanares Park Tennis Center.
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.
Djokovic did not do much wrong as he battled Sinner and the crowd - regularly jesting with the fans who jeered him throughout the duel.
Carlos Alcaraz heads to the US Open in his now-familiar role as chief challenger to defending champion Jannik Sinner and the Spaniard will be driven this year by the twin pursuit of Grand Slam glory and the World No. 1 ranking.
Dhakshineswar shines on debut, Nagal makes winning return; India take 2-0 lead against Switzerland
Six-time champion Novak Djokovic has withdrawn from this year's Italian Open, organisers said on Tuesday.
Yuki Bhambri claimed his maiden ATP title as he along with South Africa's Lloyd Harris of South Africa won the doubles title in the ATP tennis tournament in Mallorca
Jannik Sinner had to dig deep to get the better of Auger-Aliassime in the second semi-final.
Belgian third seed Elise Mertens dug deep to save 11 match points and battle past two-time winner Ekaterina Alexandrova to reach the Libema Open final.
In the evening session, men's third seed Alexander Zverev and women's fourth seed Jessica Pegula were forced off the court mid-match due to rain and the threat of lightning.
Novak Djokovic says that defending his Olympic title at LA 2028
Alexander Zverev rallied from a set down to beat defending champion Alexei Popyrin in Toronto and move into the semi-finals.
Jannik and Carlos are the favourites at Flushing Meadows, but don't write these men off!
A stellar season thus far has propelled the 43-year-old into the top 15.
Rohan Bopanna teamed up with Belgium's Sander Gille to enter the quarterfinals of the ATP 250 Boss Open in Stuttgart
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.
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.
Yuki Bhambri and his American partner Robert Galloway lost to fourth seeded combine of Francisco Cabral from Portugal and Lucas Miedler from Austria in the final.
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.
A statue to honor British tennis great Andy Murray is in the works with installation at the All England Club in London planned for 2027.
Iga Swiatek was the latest top player to suffer an upset loss in Montreal as the Wimbledon champion
Carlos Alcaraz avoided another scare at the Queen's Club ATP 500 event as the top-seeded Spaniard dispatched France's Arthur Rinderknech with little fuss 7-5, 6-4 to reach the semi-finals on Friday.
Novak Djokovic battled from a set down to clinch his 100th tour-level title by beating Polish sixth seed Hubert Hurkacz 5-7, 7-6(2), 7-6(2) at the Geneva Open on Saturday.
The Serbian's 19th successive win ended any chance of Spain's Carlos Alcaraz overtaking him in the rankings this week.
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.
Alex De Minaur rallied from a set down and saved three match points to claim the Washington Open title after beating Alejandro Davidovich Fokina in the final of the ATP 500 event.
Novak Djokovic said he is hoping to put the cherry on top of a successful 2023 season with a record seventh ATP Finals title, after the world number one beat Carlos Alcaraz in the semi-final to set up a showdown with Jannik Sinner.
Poland's Hurkacz was a force to reckon with on serve -- firing 24 aces in the match -- but he ran out of steam in the final set
With Bopanna's defeat, India's challenge has ended in the elite clay-court tournament.
'It's a different surface and I've not had much time to get used to this tournament so my expectations aren't that high.'
Alexander Zverev is convinced there was a defect in the electronic line calling system during his Madrid Open win
World number two Carlos Alcaraz beat seventh seed Arthur Fils 6-2, 6-4 on Saturday to advance into his third Barcelona Open final, where the Spaniard will face Denmark's Holger Rune for the title.
Reilly Opelka has called for chair umpire Greg Allensworth to be suspended by the ATP after he received a code violation at the Dallas Open for confronting a spectator in the stands who he claimed was deliberately coughing to interrupt his serve.
Novak Djokovic became the oldest man to reach the quarter-finals at all four Grand Slams in a single season.
Carlos Alcaraz distanced himself from the class-action lawsuit filed by the Professional Tennis Players' Association
'I've done an incredible job with my fitness. I've done an incredible job with my physiotherapy, so I've maximized on everything that I possibly can do.'
'I don't have much time to celebrate. I have doubles tomorrow in London, in Queen's.'
Yuki Bhambri and his Australian partner Alexei Popyrin snatched victory from the jaw of defeat to triumph in the men's doubles at the Dubai Tennis Championships.