Novak Djokovic, a six-time Miami Open champion, cited the global travel issues caused by the COVID-19 pandemic and his desire to balance events and family life.
Roger Federer withdrew from next week's Dubai ATP tournament, claiming "it's best to go back to training" as his comeback from 13 months on the sidelines ended after two matches at the Qatar Open.
Qatar Open: Roger Federer lost to Georgia's Nikoloz Basilashvili 3-6, 6-1, 7-5 to bow out of the tournament.
Roger Federer returned to the court for the first time in over a year to take on Britain's Dan Evans at the Qatar Open.
Novak Djokovic, in an exclusive interview to NDTV, spoke about his rivalry with Roger Federer and Rafael Nadal and how they both pushed him to be a better player.
Roger Federer said retirement was never really an option during his battle with injury, insisting Sunday the pain was "completely under control" ahead of his return to competitive tennis at this week's Qatar Open.
Novak Djokovic on Monday will set a new record of 311 weeks as world number one, going past Roger Federer who had spent 310 weeks on top of the rankings.
Roger Federer's agent Tony Godsick was quoted as saying that the 20-time Grand Slam champion has opted to skip the Miami Open for scheduling reasons.
This is Novak Djokovic's fifth different stint atop the ATP rankings. He spent 122 consecutive weeks as number one between July 2014 and November 2016.
Novak Djokovic looked in control after taking the first set, but lightning-quick Frances Tiafoe refused to surrender quietly.
Novak Djokovic fought past Alexander Zverev but it wasn't enough to stave off defeat for Serbia in the ATP Cup on Friday, with Germany making the semi-finals.
Rafael Nadal, who can move past the injured Roger Federer's 20 Grand Slam titles with victory at the Australian Open beginning February 8, kicks off his season representing Spain at the ATP Cup from Tuesday.
Roger Federer and Rafael Nadal have been re-elected to the ATP players' council, whose term runs until June 2022.
Roger Federer will miss the Australian Open for the first time in his career as he continues his recovery from two rounds of knee surgery, organisers said Monday.
There was a question mark over Roger Federer, who warned this month he was in a "race against time" to be fit after two rounds of knee surgery but he has begun training in Dubai.
Tennis 2020: The year was mostly about coronavirus, though Rafael Nadal did well, while Novak Djokovic would rather forget it.
Roger Federer may have faced a stern challenge from the likes of Rafael Nadal and Novak Djokovic, but his toughest opponent on court was finally unveiled in a hilarious video by Rajasthan Royals.
The top eight available players in the men's rankings -- with Roger Federer absent -- will compete at the end-of-season tournament, which starts on Sunday behind closed doors.
