Novak Djokovic said he would have to reassess the way forward for his injured elbow after it flared up again during his shock defeat by Chung Hyeon at the Australian Open on Monday.
Tennis line judges might grimace when they hear it, but players reacted positively to them being replaced by computerised calls on the opening day of the Next Gen ATP Finals on Tuesday.
Federer welcomed the emergence of new challengers
Saina Mirza and Saketh Myneni proved too strong for the Chinese Taipei combination of Hsien Yin Peng and Hao Ching Chan to win the gold in the mixed doubles final at the Asian Games.
Wildcard Jannik Sinner completed a dream run when he beat top-seeded Alex de Minaur to win the final of the Next Gen tournament for the season's best Under-21 players on Saturday.
IMAGES from the Australian Open Men's semi-finals played on Friday.
Men's tennis steps into the unknown next week when the young guns expected to follow in the footsteps of the current golden generation contest the inaugural Next Gen ATP Finals in Milan.
A hoped-for fight to the finish for the year-end number one ranking at next month's ATP World Tour Finals in London will likely be a coronation for Rafael Nadal, who is virtually guaranteed ending 2017 top of the pile.
The 32-year-old, who was ousted in the fourth round at the All England Club last year, will play ATP NextGen Finals winner Chung Hyeon on Wednesday and Frenchman Lucas Pouille, a Wimbledon quarter-finalist in 2016, on Friday.
The future arrived late but after some old-fashioned glitches, two Russian trailblazers fired the first shots in what could be a revolution in tennis at the Next Gen ATP Finals on Tuesday.
Meet Olympic silver medalist Mathias Boe.
The Australian Open men's singles final offers a rematch of the dramatic 2021 French Open final, in which Djokovic came back from two sets down to snatch the title and leave Greek Tsitsipas heartbroken.
Halep through but Stephens exits in Cincinnati
Look who we spotted at the Melbourne Park this year.
IMAGES from matches played at the Miami Masters in Key Biscayne, Florida
Kyle Edmund has the most destructive forehand in tennis and it can power him into the world's top 10, according to three-times Australian Open champion Mats Wilander.
Simona Halep's powers of recovery will be put to the test on day eight of the Australian Open on Monday when the world number one meets Japan's Naomi Osaka in a tricky fourth round clash.
Take a look at six of the up-and-comers who could upset the top names at the year's first Grand Slam.
Roger Federer cruised to a 6-4, 6-4 win over Peter Gojowczyk in his first appearance since losing in the Wimbledon quarter-finals.
After winning the Asian Games mixed doubles gold, Indian tennis' newest star sets sights on breaking into the top 100.
Former world number two Tommy Haas officially announced his retirement from tennis at the BNP Paribas Open in Indian Wells on Thursday, ending a career that spanned more than two decades.
World No 55 Haase improved to a 2-2 career record against Zverev, including victories in their last two meetings.
Japan's Nishikori was the first man representing an Asian country to break through to a Grand Slam final at the 2014 tournament before Marin Cilic stopped him in the title match.
A family holiday in the Maldives might seem a good time for Roger Federer to put the racket down, but the Swiss master could not resist the offer of a hit when he found out Marin Cilic was also relaxing in the islands.
Roger Federer savoured the latest chapter of a late-career fairytale that delivered a sixth Australian Open crown on Sunday and a very 'special' 20th Grand Slam title.
A summary of sports events and persons who made news on Thursday
Rafael Nadal saw off Rogerio Dutra Silva 6-1, 6-2 on Wednesday to reach the last 16 of the Barcelona Open, while Andy Murray advanced after opponent Bernard Tomic withdrew.
A summary of sports events and sportspersons, who made news on Tuesday.
Novak Djokovic has undergone an elbow operation in an attempt to cure an injury that has troubled him for the past two years.
Serena faces hard-hitting Giorgi in first round while former World No Hewitt play his final grand slam
A day after celebrating his 36th birthday, Federer played the aggressive game that has propelled him to five titles, including two grand slams, this year, attacking the net and rocketing second serves.
World number one Novak Djokovic continued his dominant form in Tokyo to storm past Frenchman Lucas Pouille 6-1, 6-2 and into the semi-finals of the Japan Open.
Images from Day 6 of the US Open in New York, on Saturday.
He has three titles to his name this season, including winning a third Masters 1000 in Madrid, and on Saturday he will become the first German for 15 years to contest a semi-final match at the season-ending ATP Finals.
IMAGES from the matches played at the Miami Masters on Sunday
Novak Djokovic endured a fierce challenge to his Melbourne Park reign before overhauling Dominic Thiem 6-4, 4-6, 2-6, 6-3, 6-4 on Sunday to clinch an eighth Australian Open crown and reclaim the world number one ranking. While Rafa Nadal rules Roland Garros with 12 titles, Djokovic holds sway in the title match at Rod Laver Arena having never lost a final in Melbourne Park.
Croatian Marin Cilic prepares to try to stop the Swiss claiming a sixth Australian Open title on Sunday.
The 32-year-old, who has not played since retiring injured in the US Open semi-finals, cited an abdominal injury.
The 21-year-old German, one of the brightest stars in men's tennis, is yet to progress beyond the quarter-finals at a Grand Slam.
Two time Miami Open winner Victoria Azarenka crushed Serbia's Jelena Jankovic.
