Zverev cruised past home favorite Roberto Bautista Agut 6-2, 6-2, while Sabalenka triumphed over qualifier Anna Blinkova 6-3, 6-4.
Aryna Sabalenka's return to top spot in the WTA rankings after leapfrogging Iga Swiatek has set up a thrilling end to the season, with next month's WTA Finals in Saudi Arabia likely to prove decisive in the race to end the year as world number one.
Coco Gauff dismantled defending champion Iga Swiatek 6-1, 6-1 on Thursday with a ruthless display to storm into her first Madrid Open final, where she will face world number one Aryna Sabalenka for the WTA 1000 title.
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.
Those deep runs have left her better equipped to handle the pressure at the business-end of the majors.
Serena Williams fuels comeback speculation with TV interview
Check out what the players are wearing at this year's Australian Open.
Aryna Sabalenka skipped the traditional post-match press conference at the French Open on Friday citing mental health reasons.
Sabalenka, who was set to face American Emina Bektas, was replaced in the draw by Russian Erika Andreeva, while fellow Belarusian Azarenka's spot was taken up by another lucky loser in Frenchwoman Elsa Jacquemot.
Koltsov's death sent a shockwave through the Miami Open where Sabalenka is scheduled to play her opening match
Swiatek rejects 'Battle of the Sexes' and backs mixed team events
Aryna Sabalenka beat China's Zheng Qinwen 6-3 6-2 to retain the Australian Open women's singles title on Saturday.
Aryna Sabalenka will battle American 19th seed Madison Keys in the final on Saturday looking to become the first woman since Martina Hingis from 1997-99 to win the Australian Open title three times in a row.
U.S. Open champion Aryna Sabalenka will face world number four Coco Gauff in the semi-finals of the Wuhan Open after both players earned straight-set wins in the quarter-finals on Friday.
Images from Day 8 of the Australian Open at Melbourne Park on Sunday.
The event comes at a time when tennis is facing criticism over its relentless tour schedule.
French Open champion Coco Gauff defeated Italy's Jasmine Paolini 6-4, 6-3 on Saturday to reach the Wuhan Open final, her third WTA 1000 final of the year.
Coco Gauff overcomes Sabalenka in error-riddled final to win French Open
Tough road for defending champion Keys
Factbox on Belarus' Aryna Sabalenka, who beat China's Zheng Qinwen in the Australian Open final on Saturday
The loss ends five-time major champion Swiatek's bid to become the first woman to win the tournament in the Southern California desert three times.
The 2025 Vanity Fair Oscars Party became a convergence of sports and style, as Coco Gauff, Aryna Sabalenka and Serena Williams seamlessly transitioned from the tennis court to the glitz and glamour of Hollywood.
IMAGES from the French Open played at Roland Garros, in Paris, France, on Sunday.
It was an emotional win for Aryna Sabalenka, who missed Wimbledon last month due to a shoulder injury.
Gauff is a fan favourite in Melbourne
The girl, wearing a matching fuchsia Nike kit and sporting a temporary tiger tattoo on her left forearm, emphatically cheered Aryna Sabalenka on
The International Tennis Federation (ITF) named Novak Djokovic and Aryna Sabalenka as its 'world champions' of 2023 after their performances at this year's Grand Slams.
World number one Iga Swiatek edged Aryna Sabalenka 7-5, 4-6 7,-6(7) in a gripping and gruelling Madrid Open final to win the title for the first time on Saturday in what was a repeat of last year's summit clash at the WTA 1000 claycourt tournament.
Aryna Sabalenka bludgeoned her way to a maiden Grand Slam title at the Australian Open with a 4-6, 6-3, 6-4 win over Kazakh 22nd seed Elena Rybakina on Saturday in a thrilling final .
Poland's Swiatek, who has dropped to fifth in the world rankings, has so far failed to win a title this year despite a few deep runs in tournaments, including the Australian Open semi-finals.
Aryna Sabalenka took a big step towards retaining her Australian Open crown by beating American fourth seed Coco Gauff
Keys, who captured her first Grand Slam title at the tournament last year, said she was still getting used to the surreal experience of seeing herself immortalised around Melbourne Park.
Images from the US Open women's singles final at Flushing Meadows, New York, on Saturday.
Defending champion Coco Gauff put on a clinical performance to beat Jasmine Paolini 6-3, 6-2 and eliminate the Italian as she registered her first win at the WTA Finals on Tuesday.
Aryna Sabalenka opened her bid for a third straight Australian Open title with an easy victory over Sloane Stephens on Sunday.
Belarusian second seed Aryna Sabalenka beat Iga Swiatek 6-3, 3-6, 6-3 to win the Madrid Open on Saturday, avenging her defeat by the Polish world number one in last month's Stuttgart final.
Jasmine Paolini's exit means only one of the top five women's seeds -- world number one Aryna Sabalenka -- will be in the third round. It is only the second time that this has happened in the professional era after Wimbledon 2018.
No. 1 seed Aryna Sabalenka of Belarus had little trouble getting past China's Qinwen Zheng in a group-stage match at the WTA Finals on Saturday, prevailing 6-3, 6-4 in Riyadh, Saudi Arabia.
Factbox on American second seed Coco Gauff, who defeated Belarusian world number one Aryna Sabalenka
Images from the US Open women's singles quarter-finals at Flushing Meadows, New York, on Tuesday.