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.
Rafael Nadal has booked his place at the World Tour finals after winning a record eighth French Open title, the ATP said on Monday.
Rohan Bopanna and his Australian partner Matthew Ebden sailed into the men's doubles final at the Miami Open.
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.
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.
Morgan, a 35-year-old former Florida University football player, was found dead on Monday after being reported missing by his family.
Novak Djokovic became the oldest man to reach the quarter-finals at all four Grand Slams in a single season.
Organisers played a wrong national anthem for Moldova ahead of their tie against Belgium in Sydney. Denis Shapovalov won the battle of the next generation against Greek Stefanos Tsitsipas to help Canada to an emphatic 3-0 victory in the inaugural ATP Cup men's team event in Brisbane on Friday.
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.
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.
Paire, ranked 29 in the world, said the sport had become a 'tasteless job'.
'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.'
The hosts had blanked Germany in their opening tie and became the first to seal a quarter-final spot with their second 3-0 win in the inaugural team event.
Novak Djokovic is bidding to become only the third man in history to win 100 ATP titles.
Japan's Kei Nishikori dispatched error-strewn Swiss Stan Wawrinka 6-2, 6-3 in a disappointingly one-sided clash at the ATP World Tour Finals on Monday.
Images from the men's singles action at the US Open on Sunday.
'I don't have much time to celebrate. I have doubles tomorrow in London, in Queen's.'
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
The 35-year-old Serb was sent home from Australia on the eve of last year's event after a row about his COVID-19 vaccination status.
With Federer certain, young Austrian Dominic Thiem is third in the ATP race to London, followed by Stan Wawrinka, Alexander Zverev, Djokovic, world number one Andy Murray, and Belgium's David Goffin.
'It's one of the most epic matches I have played on this court, on any court really.'
World number one Rafael Nadal said on Wednesday he would skip the Asian leg of the ATP tour to recover from the knee injury he picked up at the US Open, a decision that will boost Novak Djokovic's chances of ending the year top of the rankings.
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.
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.
The Serb was knocked off top spot by Rafael Nadal on Monday despite winning the Paris Masters last week and will need a strong finish alongside the River Thames to snatch it back.
Zverev and Rublev among dark horses for French Open
Carlos Alcaraz was pushed all the way by fellow-Spaniard Jaume Munar in a thrilling contest
The Spaniard, who has won a men's record 22 Grand Slam titles, will return for the the Masters 1000 event in Bercy, which the world number two has never won, as part of his preparations for the ATP's finale in Turin from November 13-20.
Learner Tien is the youngest American man to reach the third round of the Australian Open since an 18-year-old Pete Sampras in 1990.
Norway's Casper Ruud won his first Masters 1000 title on Sunday, as he stormed to a 7-5, 3-6, 6-4 victory over fifth seed Jack Draper in the Madrid Open final with a gutsy performance that showcased his clay-court mettle.
Sinner remains the man to beat at Melbourne Park even as doping officials seek a two-year ban for the world number one for failing two drugs tests last March.
The unseeded Indo-Colombian pair defeated Gonzalez and Molteni 6-3, 6-2 in the final that lasted for a little over an hour.
Rohan Bopanna and his doubles partner Florin Mergea qualified for the year-end ATP World Tour Finale when Vasek Pospisil and Jack Sock lost the Paris Masters final, on Sunday.
French veteran Richard Gasquet was also among eight men given wild-card entries.
Chilean 21st seed Nicolas Jarry outclassed American Tommy Paul 6-3, 6-7(3), 6-3 to reach the Italian Open on Friday as former champion Alexander Zverev recovered from a slow start to beat Chilean Alejandro Tabilo 1-6, 7-6(4), 6-2.
Jannik Sinner spearheaded Italy's charge towards a second successive Davis Cup title with a 2-0 victory over the Netherlands in the final at the southern Spanish city of Malaga on Sunday.
Down's syndrome can cause developmental delays, intellectual disability and increase the risk for some medical issues in individuals who have the condition.
Japan's Kei Nishikori will make a third straight appearance at the ATP Tour finals next month after becoming the fifth player to qualify for the season-ending tournament, organisers said on Wednesday.
Jannik Sinner's bid to win back-to-back Halle Open titles was ended on Thursday
Teichmann wins singles, Anshba-Pridankina claim doubles at Mumbai Open
