The Croatian helped Djokovic claim nine of his 24 Grand Slam titles before leaving his team in March and on Friday was hired to coach world number five Rybakina for the 2025 season.
Earlier this month, the ATP also announced a two-year partnership with online learning platform Coursera which will allow players to access over 4,000 courses for free.
Novak Djokovic secured a semi-final place at the ATP Finals with a 6-3, 6-2 victory over Russian Andrey Rublev on Wednesday, his 50th match win of the year, while Stefanos Tsitsipas withdrew from the tournament due to an elbow injury.
Following a victory over Alexei Popyrin at the Queen's Club Championships in his 1,000th tour-level singles contest, Murray withdrew due to the injury while trailing 4-1 in the first set of his second-round match with Jordan Thompson on Wednesday.
Debutant Stefanos Tsitsipas crushed defending champion Alexander Zverev 6-3, 6-2 on Wednesday to book his place in the last four of the ATP Finals with a match to spare.
Carlos Alcaraz beat Novak Djokovic in the Wimbledon final to win his fourth Grand Slam title.
Eqbal and Faisal's recent success saw him conquer Fardeen Mohammed and Abhinansu Borthakur 6-0, 6-2 in the men's doubles final to win the title.
Davis Cup heavyweights Australia and the United States eased through the first qualifying round on Saturday but Britain were knocked out as Japan hit back from 2-1 down to win 3-2, while Denmark staged a dramatic comeback to overcome Serbia.
Sasikumar Mukund will aim for a winning return to the Davis Cup fold as India faces Togo in the World Group I Play-off.
Sinner gives the impression of a player with all the answers against whoever he comes up against, but the off-court questions he is likely to face about the doping case that surfaced in August might be harder to shrug off.
World number one Rafael Nadal has been drawn alongside defending champion Alexander Zverev, Association of Tennis Professionals (ATP) reported.
Former world number one Novak Djokovic, the last surviving member of tennis' "Big Four", said he does not plan on stopping any time soon but admitted that the retirement of rivals Roger Federer, Andy Murray and Rafa Nadal has been overwhelming.
Here is a quick glance of all the highs and lows from Nadal's stupendous career:
Frances Tiafoe sees huge strides for American men after another deep US Open run. The ebullient fan favourite was already looking to the future.
Daniil Medvedev destroyed his racket and a net camera in a mid-match meltdown as he survived a huge scare against Thai wildcard Kasidit Samrej.
Australia now have the opportunity to avenge last year's final defeat by Italy after world number one Jannik Sinner inspired the holders to a 2-1 victory over Argentina.
Djokovic helped Serbia to a 3-0 victory over Japan in their Group A opener on Wednesday at La Caja Magica where a revamped Davis Cup climax is being contested by 18 nations over seven days.
The American duo won 5-7, 6-1, 13-11 as they added the season-ending crown to the Wimbledon and US Open titles.
Former world number one Andy Murray is in line to play Grigor Dimitrov in the opening round of the inaugural ATP Cup, with Bulgaria qualifying among the final six teams in the nation-based tournament.
Sinner remains the man to beat at Melbourne Park even as doping officials seek a two-year ban for the world number one for failing two drugs tests last March.
Up against higher-ranked Miomir Kecmanovic (No. 53) of Serbia in the first round, the world No. 72, who has qualified for the 2024 Paris Olympics, lost 2-6, 6-3, 3-6, 4-6.
The sight of immaculately-dressed line judges standing or crouching at the side and back of the grass courts has been a feature at the Grand Slam for 147 years.
Jannik Sinner retained his Australian Open title with an emphatic 6-3, 7-6(4), 6-3 win over Alexander Zverev on Sunday
The All India Tennis Association (AITA) selection panel picked a five-member squad in which Mukund will be the highest-ranked singles player at number 368.
Tallon Griekspoor prevailed in a high-voltage three-set final against Benjamin Bonzi to win his maiden ATP World Tour title.
Medvedev became only the fourth player in ATP history to beat the world's top three at the same tournament.
Djokovic saved three breakpoints in stifling conditions to go 5-4 up but lost the opening set in a tough tiebreak as Opelka cranked up his serve
However, the 33-year-old Spaniard will not know until later on Friday whether his Herculean effort was in vain.
Alcaraz returns to action at this week's Cincinnati Open, where he can gain ground on the Serb and Italian Jannik Sinner.
Defending champion Jannik Sinner dismissed eighth seed Alex de Minaur 6-3, 6-2, 6-1 to reach the Australian Open semi-finals and extend the country's decades-long wait for another homegrown singles winner at the Grand Slam on Wednesday.
Dhakshineswar, who is in US College circuit, could not qualify for the singles main draw, falling in the second round of the qualifying event 3-6, 4-6 to American fourth seed Learner Tien.
Former Indian tennis captain Anand Amritraj has criticized top players Sumit Nagal and Yuki Bhambri for not playing in the Davis Cup, stating that money should not be a factor when representing the country.
Sasikumar Mukund, who was banned by AITA on disciplinary grounds, is back as India's best-ranked player for the World Group I Play-off tie against Togo, starting on Saturday.
World number two Nadal's fate will rest on his final group match against Tsitsipas.
Italy's Sinner and Spain's Alcaraz have won two Grand Slams each this year, with Alcaraz beating Sinner in closely fought clashes at the French Open semi-finals and the China Open final.
Melbourne on Friday completed 28 days since the last reported locally-acquired case of novel coronavirus infection.
Third seed Alexander Zverev produced a near-flawless display to outclass former champion Holger Rune 6-3 7-6(4) on Saturday and return to the Paris Masters final after a gap of four years.
ATP events in Hamburg, Bastad, Newport, Los Cabos, Gstaad, Umag, Atlanta and Kitzbuhel will not go ahead as scheduled.
India has never beaten Sweden in five attempts in the Davis Cup.
'It's one of the most epic matches I have played on this court, on any court really.'
