Zverev has consistently denied all the allegations.
Second seed Daniil Medvedev will launch his bid to win his first major title against veteran Frenchman Richard Gasquet.
Leander Paes and his Czech partner Martin Damm secured a berth in the season-ending Masters Cup in Shanghai.
The ATP will scrap the third set for doubles and replace it with a tiebreak to speed up play
In his pre-tournament news conference in Toronto on Sunday, Nadal said a recurring foot issue he has been dealing with since 2005 returned at the French Open, where he fell to eventual champion Djokovic in the semi-finals.
Mahesh Bhupathi and Rohan Bopanna saved a match point to breeze into the title clash of the ATP World Tour finale after defeating Leander Paes and Radek Stepanek via Super tie-breaker, in London on Sunday.
Nadal's unbeaten streak of 20 matches in the year 2022 came to an end as he lost to Taylor Fritz
Nadal's participation in the season-ending Tour finals hung in the balance when the Spaniard pulled out of the Paris Masters
Only once in 16 previous appearances has Federer not survived the group stage, back in 2008. IMAGES from the ATP Finals played at The O2 Arena in London on Sunday
Hopes of a dream final between Rafael Nadal and Roger Federer were dashed on Friday when the top two seeds pulled out injured from their quarter-final matches at the Paris Masters. Federer withdrew with a back injury a few hours before his match against American James Blake, while Nadal quit his showdown with world number six Nikolay Davydenko after losing the first set 6-1.
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.
Somdev Devvarman has crashed out of the Indian Wells ATP Masters as the top seeded Indian suffered a first round defeat at the hands of Spaniard Daniel Munoz-de La Nava.
Leander Paes' impressive show at the ATP Masters has seen him rise four places to eighth in the latest doubles rankings.
Bopanna and Kubot saved five of the seven chances while their rivals got broken only once, saving six other chances.
Top three seeds Roger Federer, Novak Djokovic and Andy Murray moved into the third round of the Cincinnati Open with relatively comfortable straight set victories on Wednesday.
The Spanish left-hander, who was sidelined for seven months last year with a left knee injury, overcame a gritty challenge from the hard-hitting Argentine to win a record 22nd ATP Masters title, and a third at Indian Wells.
Rafael Nadal and Roger Federer stayed on track for a mouth-watering showdown in the BNP Paribas Open quarter-finals after they both advanced to the last 16 on Monday.
Russia's Andrey Rublev overcame Grigor Dimitrov 7-6(7), 6-3 in their semi-final clash at the Shanghai Masters on Saturday, and will now face Hubert Hurkacz, who beat Sebastian Korda.
The fifth seds were beaten by the unseeded Argentine pair of Gaston Etlis and Martin Rodriguez in the ATP Masters.\n
Rohan Bopanna and Pablo Cuevas came from behind to knock out seventh seeds Feliciano Lopez and Marc Lopez, sealing a quarter-finals berth at the ATP Rome Masters.
High on confidence after their good performances in Rome and Madrid ATP Masters, the doubles duo of Mahesh Bhupathi and Rohan Bopanna of India is eyeing this year's French Open title.
Meanwhile, in the WTA event, third seeded-pair of Sania Mirza and Yaroslava Shvedova lost 3-6, 6-7(7) to second seeds Yung-Jan Chan and Martina Hingis in the semi-finals of the $3,076,495 red clay event.
Leander Paes and Radek Stepanek progressed to the pre-quarterfinals of the ATP Masters event at Indian Wells but Mahesh Bhupathi and Rohan Bopanna suffered a shock first round defeat.
The Indo-Pakistan tennis duo of Rohan Bopanna and Aisam-ul-Haq Qureshi has booked a berth in the season-ending ATP World Tour Finals to be held from November 20 to 27 at London's O2 arena.
Mahesh Bhupathi and Rohan Bopanna had to be content with a runners-up finish at the ATP Cincinnati Masters as they lost the summit clash in straight sets to Sweden's Robert Lindstedt and Romania's Horia Tecau.
Rohan Bopanna and Aisam-ul-haq Qureshi prepared for their debut in season-ending finale by capturing the ATP Paris Masters and the Indian said the win is a confidence booster ahead of the elite event in London.
A resurgent Roger Federer swept past local favourite Jo-Wilfried Tsonga 6-1, 7-6 to clinch his maiden Paris Masters title on Sunday and send a deafening warning to his rivals ahead of the ATP World Tour finals.
The former world No.1 doubles pair upset fourth seeds Mark Knowles of Bahamas and Daniel Nestor of Canada in the semi-finals of the ATP Masters.
Federer, Nadal and Djokovic had made it near impossible for their peers to live, and thrive, amongst them. But the coming generation, which hasn't been as scarred by defeat at the hands of the Big 3, may make tennis unpredictable again.
Nadal converted two of three break chances to claim his 19th win in 22 encounters against the Swiss.
Tournaments continue to be played in front of a handful of fans at most.
Chilean Fernando Gonzalez became the seventh player to qualify for this month's Masters Cup despite losing in the second round of this week's Paris Masters.
The India-Pakistan tennis duo of Rohan Bopanna and Aisam-ul-Haq Qureshi advanced to the semi-finals of the Monte Carlo ATP Masters tournament, shocking second seeds Daniel Nestor and Max Mirnyi in the quarter-finals on Friday.
Erratic serving cost Andy Murray dearly as the U.S. Open champion was knocked out of the BNP Paribas Open quarter-finals 6-7, 6-3, 6-1 by Argentina's Juan Martin Del Potro on Friday.
Indian tennis ace Leander Paes is set to partner Spanish legend Rafael Nadal in the men's doubles event at the 3,288,530 euro Paris Masters to be played on the indoor hard courts of the Palais Omnisports in Bercy next week.
American Jack Sock clinched the last spot in the ATP Tour finals when he beat Serbian qualifier 5-7, 6-4, 6-1 to win the Paris Masters title on Sunday.
World number one Novak Djokovic continued his rich vein of form as he brushed aside French opponent Jo-Wilfried Tsonga in straight sets to clinch the Shanghai Masters title on Sunday.