The ATP has pushed for changes in scoring rules and qualifying methods for doubles competitions at tour events
With Federer certain, young Austrian Dominic Thiem is third in the ATP race to London, followed by Stan Wawrinka, Alexander Zverev, Djokovic, world number one Andy Murray, and Belgium's David Goffin.
Casper Ruud gained sweet revenge over Stefanos Tsitsipas as he beat the Greek fifth seed 7-5, 6-3 to win the Barcelona Open on Sunday.
India's Rohan Bopanna and his partner Daniel Nestor grabbed their second ATP title.
Jannik Sinner won his maiden Grand Slam title at the Australian Open on Sunday.
Sumit Nagal was handed a straight-set defeat by Canada's Milos Raonic in the opening round of the BNP Paribas Open.
Japan's Kei Nishikori dispatched error-strewn Swiss Stan Wawrinka 6-2, 6-3 in a disappointingly one-sided clash at the ATP World Tour Finals on Monday.
The two cases shocked the tennis world with many fuming at how they were handled by the authorities.
Twenty four time Grand Slam champion Novak Djokovic closed the 2023 ATP season by clinching the year-end No. 1 spot for a record-extending eighth time.
Djokovic looked in fine nick in Shanghai, playing with consistency throughout the tournament to reach his fifth final at the ATP Masters 1000 event
India's Yuki Bhambri and his French partner Albano Olivetti crashed out of Marrakech Open after losing the hard-fought semifinal to second seeds Lucas Miedler and Alexander Erler of Austria.
Djokovic etched his name in history by clinching a record 24 Grand Slam titles
Frenchman Lucas Pouille claimed his first ATP title by beating Austrian top seed Dominic Thiem 7-6(5), 6-2 in the Moselle Open final in Metz on Sunday.
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
Novak Djokovic was seriously rattled early on by inspired American teenager Nishesh Basavareddy but rallied for a 4-6, 6-3, 6-4, 6-2 victory on Monday.
Rafael Nadal has booked his place at the World Tour finals after winning a record eighth French Open title, the ATP said on Monday.
In the earlier match, Zverev beat Cilic -- the Croat's 9th loss in 10-round robin matches in the Finals
Italy sealed a place in the semi-finals of the ATP Cup by winning both singles matches against France
World number one Rafael Nadal said on Wednesday he would skip the Asian leg of the ATP tour to recover from the knee injury he picked up at the US Open, a decision that will boost Novak Djokovic's chances of ending the year top of the rankings.
The duo made the men's doubles semi-finals at Wimbledon and the final of the US Open in the same season.
Team Europe and Team World are tied at 2 after one day of the Laver Cup after play opened Friday in Berlin.
When contacted, AITA Secretary General Anil Dhupar said he does not have any objection to Bopanna playing with Balaji, ranked 84, at the Paris Olympics.
Federer was joined by his wife Mirka, who herself made a pretty picture in a black collared gown.
Ace Indian tennis player Sumit Nagal was off to a winning start in Monte Carlo Masters as he defeated world number 63 Flavio Cobolli of Italy in straight sets in the qualifiers in Monte Carlo on Saturday.
Sumit Nagal, who recently became the first Indian to beat a seeded player in a Grand Slam tournament, will spearhead the Indian challenge in the men's singles competition of the Chennai Open ATP Challenger 100 tournament beginning on Sunday.
Yuki Bhambri and his Dutch partner Robin Hasse went down in straight sets to Ivan Dodig and Austin Krajicek at the Dubai Duty Free Tennis Championships.
Australian Open champion Novak Djokovic has succeeded in his bid to stage an ATP tournament in his home town of Belgrade from 2009.
Mahesh Bhupathi and Mark Knowles won the euro 891,000 ATP Swiss Indoor tournament in Basel on Sunday beating Christopher Kas and Philipp Kohlschreiber of Germany.
Summary of sports events and persons who made news on Tuesday
The Association of Tennis Professionals (ATP) has decided to increase the overall prize amount for the men's tennis tours, exceeding 100 million dollars for the first time in 2015.
The ATP has voted to end the round-robin experiment with immediate effect.
India's Somdev Devvarman dropped two places to 65 but ranking of all other top players of the country remained unchanged in the latest lists, issued today by the ATP and WTA.
World men's number one Jannik Sinner has been cleared of fault or negligence by an independent tribunal after failing two drug tests in March, the International Tennis Integrity Authority (ITIA) said on Tuesday.
The All India Tennis Association claimed that Sumit Nagal demanded an annual fee of $50,000 to play Davis Cup ties for India.
Laslo Djere won his first ATP title at the Rio Open on Sunday and then captured the hearts of the Brazilian crowd with a victory speech dedicated to his parents, both of whom died from cancer.
Earlier on Tuesday, Murray said players were aware that matches on the ATP Tour were being thrown. "It is pretty disappointing for all the players, but everyone knows that it goes on," the Scot, who is in Moscow for the Kremlin Cup, told the BBC.
Top seeds Rohan Bopanna and Aisam-ul-haq Qureshi lived up to their billing and won their first ATP title of the season, overcoming Robin Haase and Milos Raonic 7-6 (8), 3-6, 11-9 in the summit clash of the Gerry Weber Open in Halle, Germany on Sunday.
The Asian tennis body wants 25 percent of the field at every event held in the continent is reserved for their players.
Balaji also showed that he can quickly adapt to conditions when he was asked to do the singles duty during the Davis Cup tie against Pakistan on grass. The rival was not of the highest quality but Balaji showed that he was willing to come out of his comfort zone if the team demands.
