Novak Djokovic is chasing a record-extending eighth Australian Open title, while Dominic Thiem will bid to become the first man born in the 1990s to win a major title.
Here are some facts about Federer and his ranking.
Roger Federer's decision to skip this year's French Open has been applauded by Boris Becker, who believes the decision means the Swiss will be a strong favourite at Wimbledon.
A game isn't over until the final whistle blows, says Pratik Gour, co-founder of Footprynt, an influencer marketing agency.
Roger Federer, who suffered a groin problem in the quarter-final against Tennys Sandgren, bowed out of the Australian Open after a comprehensive 7-6(1), 6-4, 6-3 defeat to the defending champion Novak Djokovic.
Rafael Nadal set up an Italian Open semi-final with Stefanos Tsitsipas on Friday thanks to a 6-4, 6-0 win over Fernando Verdasco.
Federer won the first set but Sandgren rallied to bag the next two against the error-prone Swiss
The 34-year-old played no part in his country's ATP Cup campaign, which ended in a 2-0 semi-final defeat at the hands of Italy on Saturday.
Federer, who has agreed to play in the Dutch hardcourt event for the first time since 2015, currently sits on the second spot in the world rankings.
Roger Federer and Rafael Nadal have returned to tennis in blistering form this season because they were able to recharge during injury layoffs last year, former world number two Alex Corretja has said.
Chasing a sixth US Open title, Federer needed just one hour and 46 minutes under a closed roof at Arthur Ashe Stadium to put away the 31st seed Lopez, leaving plenty in the tank after being forced to go the distance in his opening two matches.
The Serbian top seed won a fourth successive title at the All England Club to take his overall Grand Slam tally to 21.
The Wimbledon Championship runner-up is expected to be a top draw at the ATP 250 event to be played at the Mhalunge Balewadi Stadium in Pune.
Switzerland's two greatest tennis players will join forces at next year's Rio Olympics when Roger Federer and Martina Hingis play together in the mixed doubles.
Nadal stretched his record of men's singles Grand Slam titles to 22
The prospect of winning an Olympic gold medal for Serbia outweighs the disappointment of playing in an empty venue at the Tokyo games, the men's world tennis number one Novak Djokovic said on Monday.
Roger Federer said he was happy with his preparation at home.
Health experts warn that a prolonged isolation could take a big mental toll on people whose livelihoods and self esteem are intrinsically linked to competition. Frustration at the confinement has already spilled over on occasion, with high profile soccer players getting into hot water for breaching government orders on social distancing by hosting parties and drinking sessions.
Unseeded Novak Djokovic was given some trouble by Jeremy Chardy in the opening set but prevailed 7-6(5), 6-4 to take his record over the Frenchman to 11-0 and 26-0 in sets.
There is no one more unbeatable in men's tennis than Novak Djokovic when the Serb is at his best, former world number four American Todd Martin said. Reigning world number one Djokovic has already established himself as one of the best ever to play the game and the Serb's Grand Slam haul of 17 is just three behind the 20 that Roger Federer has amassed. The Swiss player will be 39 in August.
A rampaging Roger Federer delivered a stunning reminder of his class at the Australian Open on Friday with a crushing 6-2, 6-4, 6-4 win over Tomas Berdych to storm into the fourth round.
Rafael Nadal said on Saturday "too many questions" still needed to be answered concerning Novak Djokovic's bid to play at the Australian Open, while other leading players lamented how the saga had overshadowed the year's first Grand Slam.
Roger Federer beats Tomas Berdych 7-6, 7-6, 6-4 to reach the final!
The 38-year-old, who has lost six games so far in the tournament, dispatched his hapless opponent in only 62 minutes winning the second-round match 6-0, 6-3.
Seven-time champion Federer faces last year's runner-up Milos Raonic in his quarter-final on Wednesday after defending champion Murray, who is chasing a third SW19 title, takes on big-serving American Sam Querrey for a place in the last four.
India's seven-time Olympian Leander Paes says only the best should represent the country.
Wimbledon fans with Centre Court tickets suffered the disappointment of seeing the opponents of title contenders Roger Federer and Novak Djokovic retire early in their matches - but they might have been given a bonus contest between the pair.
Fans who had poured in to see the Swiss master in action witnessed him fire down a 10,000th career ace and chalk up a record 85th win at Wimbledon, surpassing the benchmark he had shared with Jimmy Connors.
'I feel like I'm rested enough. I've had... not the toughest matches. I can look at this quarter-final (on Wednesday against Milos Raonic) in a totally relaxed fashion'
Roger Federer got the better of old foe Rafael Nadal for the first time in more than three years to win a seventh Basel title 6-3, 5-7, 6-3 on Sunday.
Roger Federer avoided an embarrassing start to the new season when he dug himself out of trouble to beat little-known journeyman John Millman 4-6, 6-4, 6-3 at the Brisbane International on Thursday.
Nadal may have 19 Grand Slam titles, one shy of Federer's all-time men's record, but when it comes to IT skills, he resembled a Sunday morning park hacker crumbling under pressure. After some pleasantries, the conversation moved on to the forthcoming virtual Madrid Open being contested with joysticks rather than tennis rackets.
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.
Second seed Roger Federer was dumped out of the Australian Open third round by Italy's Andreas Seppi on Friday.
An emotional Roger Federer wiped away tears and urged Rafael Nadal to stay with him on the tour for years to come after felling his great rival to win his fifth Australian Open on Sunday.
The victory saw him move up by three places to stand only behind Spain's Rafael Nadal and Swiss star Roger Federer.
Look who was watching the Wimbledon men's singles semi-final between Roger Federer and Tomas Berdych on Friday.
Eight-time Wimbledon champion Roger Federer, who turns 40 this year, takes on Frenchman Adrian Mannarino in round one.
The new crop of young players are poised for a Grand Slam breakthrough and New York's bright lights could provide the inspiration that finally gets one of them over the top, five-times US Open champion Roger Federer said on Friday.
Images from the men's singles quarter-finals at Wimbledon on Wednesday.
