Defending champion Stefanos Tsitsipas showed no signs of fatigue following Friday's marathon battle as he eased past German Alexander Zverev 6-4, 6-2 to reach the Monte Carlo Masters final on Saturday.
Norrie's semi-final opponent will be another American, fourth-seeded Tommy Paul, who crushed Stefan Kozlov 6-3, 6-1 in an all-US matchup.
18-year-old Carlos Alcaraz earned his first ATP Masters 1000 crown
Rafael Nadal continued his perfect run on the North American hardcourts taming Czech Tomas Berdych 7-5, 7-6 (4) at the Western and Southern Open on Saturday to setup a final showdown with big-hitting American John Isner.
Victory over Medvedev meant Alcaraz became the youngest man to win the Indian Wells and Miami Open titles, a feat dubbed the 'Sunshine Double'.
Nadal expresses doubt over Australian Open participation
A double fault earned the Russian his eighth ATP title after two hours and seven minutes.
Novak Djokovic said his rivalry with Carlos Alcaraz was becoming like the one he shared with the Spaniard's compatriot, Rafa Nadal, after needing nearly four hours to outlast the 20-year-old world number one in an epic Cincinnati Open final on Sunday.
The Indian has won five ATP Masters 1000 titles with five different partners, although he has never won a major championship in men's doubles. Not bad for someone whose knees lack cartilage.
Davis Cup: Ramkumar to lead Indian challenge against Pakistan on grass courts
The victory over the 19-times Grand Slam champion was the second ATP World Tour Masters 1000 title of the season for the 20-year-old German, who also beat Novak Djokovic in Rome.
But for the first time, that golden trio will be having an anxious glance over their shoulders. The past week in London has revealed a new fearlessness in the generation of 20 somethings expected to fill the void when they call it a day.
It was the 31-year-old Serb's second comfortable win in the Gustavo Kuerten group and combined with Marin Cilic's 6-7(2), 6-3, 6-4 defeat of American John Isner later in the day, he sealed his place in the semi-finals at the year-ender for the eighth time.
Veteran Leander Paes brushed off the disappointment of Rio Olympics as he and his German partner Andre Begemann made it to the final of the ATP Winston-Salem Open beating Swede Robert Lindstedt and Pakistan's Aisam-ul Haq Qureshi in a close encounter.
Andy Murray took a step closer to a first title in arguably the toughest year of his playing career, grinding out a 3-6, 7-5 ,6-2 win over Ugo Humbert on Saturday to reach the final of the European Open in Antwerp.
Rafael Nadal delved deep into his seemingly inexhaustible reserves of willpower on Saturday to fight off Andy Murray in a three-hour classic and reach the final of the ATP World Tour Finals for the first time.
India's Rohan Bopanna and Ramkumar Ramanathan registered a resounding straight-set win to cruise into the doubles semi-finals but it was the end of the road for compatriot Sania Mirza and her Ukrainian partner Nadiia Kichenok, in Adelaide, on Friday.
Jannik Sinner won his maiden Grand Slam title at the Australian Open on Sunday.
Djokovic saved a fifth match point but Thiem finally got the job done when he forced his opponent to float a defensive forehand over the baseline.
The two cases shocked the tennis world with many fuming at how they were handled by the authorities.
'It's pretty amazing to get the call from the Spanish king'
Japan's Kei Nishikori surged to a three-set victory over alternate David Ferrer at the ATP World Tour Finals on Thursday before sitting back to watch his fate unfold in the night match.
Roger Federer and Andy Murray avoided the need for fiddly mathematics on Thursday as they both produced dominant displays to qualify for the semi-finals of the ATP World Tour Finals.
The Indian pair of Leander Paes and Mahesh Bhupathi bowed out of the Barclays ATP World Tour Finals after losing to eighth-seeded Poles Mariusz Fyrstenberg and Marcin Matkowski via the super tie-break in the semi-finals in London on Saturday. Fyrstenberg and Matkowski needed an hour and 39 minutes to prevail over the fourth seeds and three-time former finalists 6-4, 4-6, 10-6 and reach their 31st tour-level doubles final.
India's number one tennis player Sumit Nagal is left with less than Rs one lakh in his bank account and a morose feeling of not leading a good life.
Novak Djokovic's star still burns bright as he returns to Melbourne Park in search of a record seventh Australian Open title.
Tennis's flagship team events the Davis Cup and Fed Cup Finals have been postponed until 2021 because of the COVID-19 pandemic, the International Tennis Federation (ITF) said on Friday. Professional tennis has been suspended since March and will not return until August.
Indian tennis ace Mahesh Bhupathi and his Belarussian partner Max Mirnyi reached their third ATP World Tour final of the year together, beating fifth seeds Lukasz Kubot and Oliver Marach in straight sets in the Cincinnati Masters Tennis Tournament.
Roger Federer is unlikely to play this year's Wimbledon as the Swiss great continues to recover from knee surgery, his coach Severin Luthi was quoted as saying in a Swiss newspaper.
Novak Djokovic completed a 100 percent round-robin record at the ATP World Tour Finals with a 6-2, 7-6 defeat of Czech Tomas Berdych on Friday booking his place in the semi-finals.
A round-up of all the tennis action from around the globe.
Factbox on Daniil Medvedev, who defeated world number one Novak Djokovic 6-4, 6-4, 6-4 in the US Open final on Sunday to win his first Grand Slam title.
The world number one looked unstoppable as he battered Berdych 7-6, 6-1 to set up last four clash with home favourite Andy Murray before Novak Djokovic crushed a jaded Andy Roddick 6-2, 6-3 in the final Group A action to book a meeting with Roger Federer.
'I'm always surprised when I walk off court after a final and I'm like 'where is anti-doping?'
Top seed Roger Federer dispatched Greek third seed Stefanos Tsitsipas 6-4, 6-4 in the semi-finals of the Swiss Indoors championships in Basel.
Rafa Nadal and Roger Federer set the stage for a grand finale to the men's season on Saturday when they demonstrated just what seperates them from the bunch to seal a dream final at the ATP World Tour Finals.
South Korea's Chung Hyeon said he hopes the shot clock being tested out at the inaugural Next Gen ATP Finals in Milan will become a regular feature on the Tour because it allows him to clean his spectacles without worrying.
Italian top seed Matteo Berrettini marked himself down as a genuine Wimbledon threat after beating Britain's Cameron Norrie 6-4, 6-7(5), 6-3 to win the Queen's Club title on Sunday.
Juan Martin del Potro survived a tight tussle to squeeze past Swede Robin Soderling 6-7, 6-3, 7-6. He will Nikolay Davydenko, who ended seven years of pain against Roger Federer on Saturday, beating the world number one 6-2, 4-6, 7-5 to reach the final of the ATP World Tour Finals for a second successive year.
Unseeded Australian Daria Gavrilova upset fifth seed Petra Kvitova, of the Czech Republic, 6-2, 6-1 in the first round of the China Open on Saturday as Serbia's Aleksandra Krunic showed stunning powers of recovery to pull off her own shock win over sixth seed Elina Svitolina.