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.
Alexander Zverev rallied from a set down to beat defending champion Alexei Popyrin in Toronto and move into the semi-finals.
Cilic, eliminated after two three-set losses, was hoping to end his year on a high in the city where his Wimbledon dream was ended in this year's final by Federer - the Croatian sobbing on court after suffering blisters.
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.
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.
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.
Former champion Naomi Osaka was sent packing from Indian Wells after losing in straight sets to Colombia's Camila Osorio.
Indian tennis ace Leander Paes and his German partner Andre Begemann squandered as many as five match points in the second set to eventually lose the summit clash against Guillermo Garcia-Lopez and Henri Kontinen in a three-setter at the ATP Winston-Salem Open.
Down's syndrome can cause developmental delays, intellectual disability and increase the risk for some medical issues in individuals who have the condition.
World number two Rafael Nadal criticised the ATP on Thursday for promoting a court surface he said was the toughest on the bodies of the players.
Jo-Wilfried Tsonga started his quest for an ATP World Tour final spot with a 6-2, 4-6, 7-6 second-round victory over fellow Frenchman Julien Benneteau at the Paris Masters on Tuesday.
Andre Agassi will make his professional debut in the fast-growing sport of pickelball
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.
Rafael Nadal's hopes of winning the year-ending ATP Finals for the first time live on after the Spaniard beat defending champion Stefanos Tsitsipas 6-4, 4-6, 6-2 on Thursday.
'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.'
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.
Britain number one Andy Murray has overtaken 14-time Grand Slam champion Rafael Nadal to claim the third spot in the ATP world rankings.
Leander Paes's dream of winning ATP year-end finals remained unfulfilled as the veteran Indian crashed out of the prestigious event along with Czech partner Radek Stepanek after losing a must-win Group B match in London.
Adding to the joy of India's World Cup triumph, tennis players Leander Paes and Mahesh Bhupathi won their second title of the season by clinching the Sony Ericsson Open in Miami to become number one in the ATP World Tour Doubles Team Rankings.
18-year-old Carlos Alcaraz of Spain became the youngest to clinch an ATP 500 title at the same event on Sunday when he defeated Diego Schwartzman in the final of the Rio Open.
Factbox on Italy's Jannik Sinner, who beat Germany's Alexander Zverev 6-3, 7-6(4), 6-3 in the Australian Open final
Roger Federer took a big step towards securing his endangered place in the ATP World Tour Finals by overcoming rising Canadian talent Vasek Pospisil 6-3, 6-7(3), 7-5 in the Basel Open semi-finals on Saturday.
Ramkumar will meet American Steve Johnson, who beat Spain's Marcel Granollers 6-3, 6-3 in the other semi-final, for the Hall of Fame Open title in Rhode Island on Sunday.
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.
Djokovic did not do much wrong as he battled Sinner and the crowd - regularly jesting with the fans who jeered him throughout the duel.
World number one Novak Djokovic had enough on his plate already on Wednesday without marauding Russian Daniil Medvedev pummelling him to a shock 6-3, 6-3 defeat at the ATP Finals.
Casper Ruud has become the first Norwegian to book a place in the season-ending ATP Finals, leaving one spot to be filled at the tournament in Turin, Italy later this month.
'We feel blessed to have been able to play the game of doubles for so long. We are grateful to have had the opportunities in the beginning of the year to play and say our goodbyes to the fans.'
With world number four Ruud already assured of a semi-final berth the match was in reality a dead rubber.
'My dad is trying to retire me for a while now ...
Indian tennis star Rohan Bopanna and Pakistan's Aisam-ul-Haq Qureshi have decided to reunite for the 2014 season.
Novak Djokovic handed Kei Nishikori a brutal lesson in hardcourt tennis as the Serb began his bid for a record fourth successive title at the ATP World Tour Finals with a 6-1, 6-1 win on Sunday.
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
'I've never been a fan of division in our sport, but I've always fought for better representation and influence of and positioning of the players globally in our sport, which I think is still not where I think it should be.'
Richard Gasquet kept his ATP World Tour finals hopes alive when he overcame Fernando Verdasco 7-5, 6-7(6), 6-3 to reach the Paris Masters third round as fellow Frenchman Jo-Wilfried Tsonga crashed out of the race on Tuesday.
Czech Tomas Berdych booked his place in the ATP World Tour Finals for the fifth time in a row when he advanced into the semi-finals of the Paris Masters with a 6-7(4) 6-4 6-4 victory over South African Kevin Anderson on Friday.
Auger-Aliassime, now coached by Nadal's uncle and long-time mentor Toni who sat in his box, will face Fritz in his final group match with a chance of making the last four.
The buzz around talented teenagers Mirra Andreeva and Joao Fonseca continued at Indian Wells on Wednesday.
Roger Federer won the inaugural Istanbul Open on Sunday, beating third seed Pablo Cuevas 6-3, 7-6 (11) for his first clay title in three years.
Anyone banking on the ravages of time taking their toll on Roger Federer had better think again -- the Swiss is only getting better, according to his latest victim.
