French Open and Wimbledon champion Alcaraz, who won both of his previous meetings with Sinner this year, recovered from a slow start to wrap up victory in three hours, 21 minutes and improve his head-to-head record with the Italian to 6-4.
Roger Federer got back on track at the ATP Finals with a 7-6(2), 6-3 defeat of Italian Matteo Berrettini on Tuesday.
A summary of sports events and sports persons, who made news on Monday
Grigor Dimitrov claimed the biggest title of his career and sent out a huge statement of intent as the stylish Bulgarian beat David Goffin 7-5, 4-6, 6-3 to win the ATP Finals.
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.
Serbian tennis ace Novak Djokovic has continued his domination on an unchanged top 10 in the latest men's tennis rankings issued by the ATP on Monday.
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.
Fresh from his exploits in India's first-ever title-winning campaign at the Chess Olympiad, Grandmaster Vidit Gujrathi has decided against defending his crown at the 10th Vugar Gashimov Memorial Chess Super Tournament in Azerbaijan for an audience with Prime Minister Narendra Modi here on Wednesday.
Nadal was much more than a claycourt bully, though. He spent more than 900 successive weeks from 2005 in the ATP's top 10, 209 of them at number one and at the age of 24 became the youngest player to complete the career Grand Slam.
Roger Federer added yet another record to his vast collection when he guaranteed becoming the oldest ATP world number one by beating Dutchman Robin Haase 4-6, 6-1, 6-1 to reach the semi-finals in Rotterdam on Friday.
India's non-playing Davis Cup captain Rohit Rajpal on Saturday clarified that his "shut-up" remark was meant for a few "agenda-driven" people consistently targeting him and was not directed at the country's tennis community as has been projected.
Having dug in early on to stay with Federer, Nishikori ended up running away with the match to inflict a first straight sets defeat in the ATP Finals round-robin stages on the 20-time Grand Slam champion.
Both Balaji and Bhambri have got some decent results on clay in lead up to the Roland Garros, where the action will unfold during the Summer Olympics from July 27.
Former Australian player Brad Drewett was named on Thursday as the new head of the men's governing tennis body the ATP.
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.
A mouthwatering finale to the season ended before it even began on Sunday when Roger Federer was forced to pull out prior to the ATP World Tour Final showdown with Novak Djokovic.
Laura Siegemund entered the record books with her defeat of fifth-seeded Xiyu Wang of China in four hours, nine minutes at the Thailand Open in Hua Hin on Wednesday.
The 36-year-old was given a thorough workout by Sock although had he been a little more clinical the scoreline would have been more heavily-weighted in his favour.
Riding on his sizzling performance in the Japan Open, Leander Paes is once again knocking the doors of the top-five zone as he gained two spots to be placed sixth in the ATP doubles world rankings, issued on Monday. Paes and Lukas Dlouhy reached the final of the Japan Open last week but lost the summit clash, missing out on the opportunity to pocket back-to-back ATP titles.
The ATP had fined him US$106,000 for failing to attend an interview. The world no 1 says he has been defamed and wants the fine dropped.
Britain number one Andy Murray has overtaken 14-time Grand Slam champion Rafael Nadal to claim the third spot in the ATP world rankings.
Indian Davis Cupper Mahesh Bhupathi and Mark Knowles cruised into the finals of the euro 891,000 ATP Swiss Indoor tournament, defeating Argentine pair Jose Acasuso and Agustin Calleri in straight sets in Basel on Saturday.
The ATP launched a novel advertising campaign to promote the game at all its tournament sites.
India's Sumit Nagal becomes 1st Indian to win match at Masters on clay since 1990!
Ronaldo got involved in ball kid duties while watching world number one Novak Djokovic's opening match against John Isner of America as the tennis ball bounced into the stands near the first row where he was sitting.
The former Wimbledon champion has decided to take on the tournament director's role at next year's World Indoor tournament.
Novak Djokovic's tremendous run of form since the start of the year means the Serb has already booked his spot at the ATP World Tour finals in London.
Zverev and Rublev among dark horses for French Open
The opening match in the Pete Sampras Group produced a feast of stylish backhands from both players but it was Dimitrov, the first Bulgarian to qualify for the tournament in its 48-year-old history, who overcome some late jitters to prevail.
Nadal will team up with newly-crowned French Open champion Carlos Alcaraz to play in the doubles at the Olympics.
Teenager Kei Nishikori became the first Japanese to reach an ATP final at the Delray Beach International.
From 11-year-old to 60-plus, Olympics is playground for all
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.
Croatia's Ivo Karlovic became the oldest ATP winner since Jimmy Connors in 1989.
'The romanticism of late night tennis in New York, it's time to move past that'
World number one Novak Djokovic will not compete in the Miami Open as he tries limit the number of events he plays this year, the 36-year-old Serb said on Saturday.
The victory saw him move up by three places to stand only behind Spain's Rafael Nadal and Swiss star Roger Federer.
World No 1 Novak Djokovic was beaten by Tomas Machac in the Geneva Open semi-finals.
Rafael Nadal last appeared in a semi-final at Wimbledon in 2022.
Rafael Nadal once again hit out at the crammed ATP calendar and blamed the "poor" scheduling for his decision not to defend his Barcelona Open title this week.
