Koltsov's death sent a shockwave through the Miami Open where Sabalenka is scheduled to play her opening match
Regular captain Pat Cummins, fellow quick Josh Hazlewood and all-rounder Mitch Marsh have been ruled out with injuries, while Marcus Stoinis withdrew himself after his shock decision to quit ODIs on Thursday.
Frances Tiafoe is the first American man to make a US Open semi-final since Andy Roddick in 2006.
Marcos Bagdhatis proved too hot to handle for Prakash Amritraj as the Indian lost to formidable Cyprus star in straight sets at the ATP Vancouver Open.
Mike and Bob Bryan defended their Australian Open doubles title on Saturday with a 6-3, 6-7, 6-3 win over Canada's Daniel Nestor and Nenad Zimonjic of Serbia.
Swedish top seed Robin Soderling survived his first real test at the Stockholm Open on Friday, beating Spaniard Guillermo Garcia-Lopez in the quarter-finals 7-6 6-4.
Cypriot tennis player Marcos Baghdatis has withdrawn from next month's Rio Olympics after failing to recover from an elbow injury, the World No 42 said on Friday.
Factbox on 2008 Australian Open champion Maria Sharapova.
Penpix of the top men's contenders at the 2021 French Open which begins on Sunday:
The Cypriot confessed that he found it difficult to cope with fame after finishing runner-up to Roger Federer in the 2006 Australian Open.
Factbox on Russia's Maria Sharapova who was banned until January 2018 on Wednesday after testing positive for the banned drug meldonium at this year's Australian Open.
Australian Stosur, who has a history of suffering attacks of nerves in front of home fans, struggled to serve out the match at Rod Laver Arena and double-faulted on match point.
Rafael Nadal is the oldest title winner in the history of the clay-court tournament.
The world No 1 will face unseeded Finn Jarkko Nieminen, who defeated 2006 Australian Open finalist Marcos Baghdatis 7-6 6-2 in the other semi-final.
Renowned for his speed on the ice, Koltsov won the Russian Super League title with Salavat Yulaev in 2008 and more recently returned to the club as an assistant coach.
Here is a breakdown of Roger Federer's Grand Slam numbers.
Images from Day 1 at the Australian Open.
The Serbian top seed won a fourth successive title at the All England Club to take his overall Grand Slam tally to 21.
Australia's historic pedigree in cricket's biggest tournaments will count for nothing when they run into an Afghanistan side that is fast cementing its place in the game's top table in the Champions Trophy match in Lahore on Friday.
From Slam No 1 to Slam No 21 -- a summary of Nadal's 21 majors.
Russians Ekaterina Makarova and Elena Vesnina beat Martin Hingis and Italy's Flavia Pennetta 2-6, 6-3, 6-2 to capture the U.S. Open doubles title on Saturday, denying the Swiss a return to the Flushing Meadows winner circle for the first time in 16 years.
Factbox on Serbia's Novak Djokovic who won his sixth Australian Open men's singles title on Sunday.
Nadal surpassed the haul of Roger Federer and Novak Djokovic.
Take a look at the profile of Maria Sharapova who told a news conference on Monday she failed a drugs test.
Images from Friday's events at the World Indoor Athletics Championships in Nanjing, China.
A look at the top men's contenders at the 2020 French Open.
How Nadal surpassed the haul of Roger Federer and Novak Djokovic.
The 42-year-old Paes now has won nine Grand Slam mixed doubles titles, surpassing compatriot and former partner Mahesh Bhupathi's record of eight titles.
The victory secured a first Grand Slam doubles championship for Laura Siegemund and a third for Vera Zvonareva
Jannik Sinner's stupendous year may have been clouded by an anti-doping controversy but on the court he is finishing the season like an express train and has won 25 of his last 26 matches.
Serena Williams likes proving people wrong and intends to surprise the sceptics at next month's French Open.
Wimbledon champions and World No 1s Novak Djokovic and Serena Williams head the field for the men's and women's events at this year's US Open.
Images from all the action on Day 4 of the Australian Open in Melbourne on Thursday
Kazahk Bublik powers past Zverev in straight sets to reach Halle final
'International cricket is incomplete without Pakistan.'
Factbox on Romanian Simona Halep, who beat Serena Williams 6-2, 6-2 to win the Wimbledon title on Saturday:
Factbox on Serbia's Novak Djokovic and Great Britain's Andy Murray who will contest his sixth Australian Open men's singles final on Sunday.
Pavlyuchenkova finally reached a Grand Slam final in her 52nd appearance