Novak Djokovic, chasing a record 23rd Grand Slam title, has said he was not holding back and would do it again. He is set to play his second-round match later on Wednesday against Hungary's Marton Fucsovics.
The returning Scot also announced his withdrawal from next week's Rogers Cup in Toronto.
Federer, a 20-times Grand Slam champion and the world number three, won the last of his eight Wimbledon titles in 2017 and is seeded second this year behind top-ranked Novak Djokovic.
Milos Raonic, the finalist at Wimbledon this year, and women's world number five Simona Halep of Romania have pulled out from next month's Rio Olympics due to fears over the Zika virus.
The Swiss great is looking to win a 102nd tour-level trophy and move closer to Jimmy Connors' record of 109.
Factbox on Rafael Nadal, who beat Dominic Thiem 6-4, 6-3, 6-2 to win his 11th French Open title on Sunday:
Factbox on Rafael Nadal's French Open final wins
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.
Tennis matches at the Ariake Tennis Park will begin from 3pm local time (0600 GMT) from Thursday, governing body International Tennis Federation said after requests from players who had struggled in the stifling weather.
Factbox on Rafael Nadal, who beat Dominic Thiem to win his 12th French Open title:
Andujar, ranked 75th in the world, made a strong start, while Federer struggled to settle into his serving rhythm early on.
Carlos Alcaraz ended Novak Djokovic's reign to usher in a new era at Wimbledon -- a win that was being trumpeted as the changing of the guard in men's tennis.
Frenchman Julien Benneteau caused a stir during an interview on French radio station RMC Sport on Sunday in which he said tournament referees were often kinder to Federer when it came to scheduling his matches.
Roger Federer continued his smooth progress at the French Open on Friday with a straightforward 6-4, 6-3, 6-2 defeat of Bosnian Damir Dzumhur to reach the fourth round.
23-times Grand Slam winner Serena Williams said she is a Roger Federer 'superfan'.
The 'Big Three' of tennis world -- Roger Federer, Rafael Nadal and Novak Djokovic -- won't lose much due to the suspension of professional tours since they have already created their own legacies but the real struggle is for lower-ranked players, including the Indians, says legendary Vijay Amritraj. Amritraj said the trio of Federer, Djokovic and Nadal, who have a tight grip over Grand Slam tournaments, won't feel any financial stress or the pressure of progress.
Swiss tennis maestro Roger Federer poked fun at Andy Murray after scribbling his own signature next to the Briton's face in spot No 2 at an official ATP event in Monte Carlo.
A US Open full of upsets and hungry, young contenders offered the latest sign that men's tennis has entered a new era
The big names who will be bidding for a podium finish before bidding farewell...
Federer has been brandishing an aggressive style of play, forcing the action and rushing in to half-volley weak second serves to forge an advantage.
Roger Federer, being the gentleman he is, accepted Rafael Nadal's invite to launch the 9-time French Open champion's tennis academy in Spain.
Nadal, Roger get in the groove for the Big W
Following is a list of the previous matches between Switzerland's Roger Federer and Spain's Rafael Nadal ahead of their meeting in the title decider at the Australian Open on Sunday
Federer beats Ruud, becomes oldest man to reach French Open 4th round since 1972
Rafael Nadal's dominance on the red claycourts in Paris is unmatched, the Spaniard picking up his 13th French Open trophy last year to match Roger Federer's 20 Grand Slam singles titles.
Halep says she sent evidence about the contamination to the ITF in December and hoped her case would be heard by an independent tribunal in February but that it was postponed and then a new date in March had also been put back.
'I definitely feel like I've got my rhythm now at this point. Clearly I've gone from lefty to righty to lefty.'
Former Wimbledon champion Marion Bartoli says there are big question marks about whether or not Naomi Osaka will play at the grasscourt championships this year after her withdrawal from the French Open, citing mental health issues.
Indian tennis star Leander Paes feels blessed to have such a long career, having won 18 Grand Slam doubles titles and accumulated close to 1000 racquets.
Dhruv Munjal insists that women's tennis needs a golden generation, one that can make matches competitive and viewing more riveting.
There is no better place than at the citadel of grasscourt tennis for the world No 1 to reconfirm his tennis supremacy, especially if he lifts a modern-era record sixth successive trophy.
The Scot lost 6-4, 6-4 to Richard Gasquet in his first singles match since January before saying he had turned down a wild card into the men's draw at the year's final Grand Slam.
Novak Djokovic believes he is the best player in the modern era
Russian and Belarusian players will be allowed to compete at the US Open this year but only as neutrals, the United States Tennis Association (USTA) announced on Tuesday.
Alex Corretja will be Spain's new Davis Cup team captain for the next two years, the country's tennis federation said.
While Medvedev said he was "lucky" he felt better and could continue his match to advance, Spain's Paula Badosa gave up.
Mahesh Bhupathi says for India to host big-ticket WTA events, the country needs to produce a top-50 women's singles player, who can bring the fans to the stadium.
As a sporting spectacle Alcaraz and Djokovic matches have delivered on every level and would be worthy of the Big Apple spotlight.
Naomi Osaka, winner of the past two Grand Slam tournaments, has parted ways with her coach Sascha Bajin.