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.
India's Mahesh Bhupathi on Monday advanced to the second round of the ATP World Tours Finals after he and his partner Max Mirnyi defeated Lukasz Kubot and Oliver Marach in straight sets at London.
The fast rising Indian pair of Divij Sharan and Purav Raja clinched its first ever ATP tour level title with a hard-fought win over Edouard Roger-Vasselin and Igor Sijsling in the summit clash of the Claro Open, in Bogota.
Top seed and defending champion Jannik Sinner, playing on his 24th birthday, ended French qualifier Terence Atmane's dream run at the Cincinnati Open with a 7-6(4), 6-2 win on Saturday to reach the final of the US Open tune-up event.
The US $380,000 ATP Tour event will be held at the newly-laid synthetic courts of the CCI in Mumbai, in September.
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
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.
ATP events in Hamburg, Bastad, Newport, Los Cabos, Gstaad, Umag, Atlanta and Kitzbuhel will not go ahead as scheduled.
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.
The ATP suspended its professional men's tennis tour for six weeks on Thursday, citing concerns over the coronavirus outbreak, which has upended major sporting events across the globe. The announcement came moments after Miami-Dade County said it would suspend the Miami Open and on the heels of Sunday's last-minute cancellation of the Indian Wells tournament in Southern California.
The ATP tour, which was suspended in March due to the novel coronavirus outbreak, is set restart on Aug. 14 with the Citi Open, followed by the Cincinnati Masters, which will be held at Flushing Meadows before the US Open.
He will surpass Roger Federer's record as the oldest No. 1 in ATP Rankings history on Sunday when he will be 36 years and 321 days old.
Rafael Nadal's decision to end his season early means Cilic is actually holding the last berth for the eight-man showdown at London's O2 Arena.
Italian tennis player Matteo Berrettini knows how to pull off a look on the red carpet.
Dhakshineswar shines on debut, Nagal makes winning return; India take 2-0 lead against Switzerland
The sight of immaculately-dressed line judges standing or crouching at the side and back of the grass courts has been a feature at the Grand Slam for 147 years.
Jannik and Carlos are the favourites at Flushing Meadows, but don't write these men off!
Rohan Bopanna and his partner Aisam-ul-Haq Qureshi have advanced to the semi-finals of the ATP Tour event in Casablanca, Morocco after scoring an easy straight-set win over Simon Greul and Peter Luczak.
Rohan Bopanna and Aisam-ul Haq Qureshi advanced to the semi-finals of the ATP Tour event in Casablanca, Morocco, after a straight sets win over Simon Greul and Peter Luczak. The Indo-Pak pair beat the German-Australian pair 6-3, 6-2 in the quarter-finals of the euro 450,000 clay-court tournament.
Rafa Nadal suffered a setback in his Paris 2024 Olympics preparations on Sunday as he was beaten 6-3 6-2 in the Swedish Open final by Portuguese seventh seed Nuno Borges.
India's Yuki Bhambri and his Dutch partner Robin Haase squandered three match points in the deciding set to go down against Nicolas Barrientos of Colombia and Rafael Matos of Brazil in the Australian Open men's doubles first round in Melbourne on Tuesday.
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.
Twenty four time Grand Slam champion Novak Djokovic closed the 2023 ATP season by clinching the year-end No. 1 spot for a record-extending eighth time.
French veteran Richard Gasquet was also among eight men given wild-card entries.
One of the rising stars of the men's tour, Fonseca shocked ninth seed Andrey Rublev on his Grand Slam main draw debut at the Australian Open in January and became the youngest Brazilian to win an ATP tournament at the Argentina Open the following month.
Former champion Naomi Osaka was sent packing from Indian Wells after losing in straight sets to Colombia's Camila Osorio.
'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.'
India has never beaten Sweden in five attempts in the Davis Cup.
Novak Djokovic began his challenge for a hat-trick of ATP World Tour Finals triumphs in London with a 6-1, 6-1 demolition of Croatia's Marin Cilic.
Former world number one Novak Djokovic, the last surviving member of tennis' "Big Four", said he does not plan on stopping any time soon but admitted that the retirement of rivals Roger Federer, Andy Murray and Rafa Nadal has been overwhelming.
Frenchman Jo-Wilfried Tsonga saved a matchpoint before beating world number six Tomas Berdych 3-6, 7-6, 6-4 in the Marseille Open final to claim his 10th ATP Tour title on Sunday.
Mahesh Bhupathi and Rohan Bopanna saved a match point to breeze into the title clash of the ATP World Tour finale after defeating Leander Paes and Radek Stepanek via Super tie-breaker, in London on Sunday.
Chess great Magnus Carlsen is launching a world Freestyle Chess tour as the variant of the game, also known as Chess960, is gaining in popularity, the world number one announced on Friday.
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.
Medvedev outlasts Zverev to reach Halle final
Rajeshwaran shown the door at Mumbai Open
Deposed World No 1 Novak Djokovic suffered an early scare against Austrian debutant Dominic Thiem at the ATP World Tour Finals before launching his bid for a fifth successive title with a 6-7(10), 6-0, 6-2 victory.
AITA President Anil Jain, who was accused of using his position for personal gains, avoided facing a no-confidence motion from the state associations only after he agreed to step aside.
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.
Djokovic did not do much wrong as he battled Sinner and the crowd - regularly jesting with the fans who jeered him throughout the duel.