India's Leander Paes and his German partner Alexander Zverev went down to the Spanish duo of Feliciano Lopez and Marc Lopez in a men's doubles first round match to bow out of the Cincinnati Open.
The fifth-seeded Ukrainian reached her second straight Grand Slam semi-final after also making the last four at Wimbledon in July.
Andy Murray made another of his trademark stirring fightbacks as the third-seeded Scot powered past Frenchman Adrian Mannarino after dropping the first two sets of their second round encounter at a sweltering US Open in New York, on Thursday.
Stan Wawrinka let his tennis do the talking as he brushed off the after-effects of a cold to breeze into the fourth round of the Australian Open with a 6-2, 6-3, 7-6(3) victory over Lukas Rosol on Saturday.
Widespread suspected match-fixing exists at the top level of world tennis, including at Wimbledon, according to secret files obtained by the BBC and online BuzzFeed News.
Tennis great Vijay Amritraj says there should be least controversy with regards to India's doubles combination in Davis Cup since the doubles match matters only when there are 'even singles matches'.
A first-week choke by leading woman Sam Stosur and a grudging loss by ageing men's warrior Lleyton Hewitt has generally been the blueprint for the home players at the Australian Open, but teenage talent Nick Kyrgios may be poised to buck the trend of local underachievement.
Serena Williams' behaviour in Saturday's US Open final divided the tennis world after she called the chair umpire a "liar" and a "thief" and said he treated her differently than male players during her loss to Naomi Osaka.
Summary of sports events and persons who made news on Sunday
With three of the four Grand Slam titles and a record six Masters Series crowns scooped up in a year of domination, Novak Djokovic could be forgiven for using the ATP Tour Finals in London as a well-earned lap of honour.
While Federer and Nadal will look to reignite the flair and fight they showed to reach last year's final, 2018 could have a different script at play.
A struggling and edgy Rafael Nadal crashed out of the Miami Open.
Only three active players -- Novak Djokovic (1080), Nadal (804) and Roger Federer (742) -- have more singles victories than him in world tennis. All this means that David Ferrer has won the most number of matches on the ATP Tour without a Grand Slam title.
Images from Day 1 of the US Open in New York, on Monday.
Andy Murray has set up a mouth-watering clash with Grigor Dimitrov and a chance to avenge his defeat at Wimbledon after hammering Portugal's Joao Sousa 6-1, 6-1, 7-5 to reach the fourth round of the Australian Open in Melbourne, on Friday.
Continuing his giant-killing spree, Slovenian qualifier Aljaz Bedene knocked out third seed and world number 15 Roberto Bautista Agut to set up the Chennai Open summit clash with top seed and defending champion Stanislas Wawrinka on Saturday.
Roger Federer's struggles in 2013 are unlikely to hasten his exit from the game and the Swiss master could hit back and win next year's Australian Open, according to tennis great Rod Laver.
Although he had beaten Nadal 12 years ago at Wimbledon, few gave Luxembourg's Muller a chance on Monday against the fourth seed and French Open champion. 'This is definitely the biggest victory since then, since I came back, especially at that stage of a grand slam, playing one of the guys who is dominating the tennis this year again. Definitely the biggest win'
The Spanish tennis federation (RFET) said on Thursday it had decided not to extend the contract of Davis Cup captain Alex Corretja when it expires at the end of this year but has yet to name a successor.
Summary of sports events and persons who made news on Sunday
The SABR may have also been the catalyst for the improvement in Roger Federer's backhand that was so instrumental in helping him to Australian Open victory at the start of this year, and looks set to spearhead his assault on Wimbledon.
Losing five Melbourne Park finals would leave many believing they were destined to never win the Australian Open title but world number one Andy Murray remains confident that this could be the year he lays his demons to rest.
World number two Simona Halep beat Maria Sharapova 6-2, 6-2 in the China Open third round on Wednesday for her first win over the Russian in eight attempts.
The 28-year-old Serb's initial slow accumulation of major silverware after his breakthrough at the 2008 Australian Open has accelerated to such an extent that talk of him surpassing the likes of Bjorn Borg, Rafael Nadal and even Roger Federer is no longer fanciful.
Mischa still finds time to tease 'Sascha', despite his little brother's rapid ascent up the tennis rankings.
Wozniacki battles past Kerber into Eastbourne final
Cycling: Olympic champion Vogel stable after operation
Ukrainian second seed Elina Svitolina ended Naomi Osaka's remarkable recent run with a 6-4, 6-2 triumph over the Indian Wells champion in the second round of the Miami Open on Friday.
"Well, I don't know what his intentions are, how he feels, but he is definitely always one of the top favourites in every tournament that he plays," said Djokovic, who beat Slovenian qualifier Aljaz Bedene 6-3, 6-2, 6-4 to join the Spaniard in the second round on Tuesday.
A rampant Rafael Nadal turned on the style to beat old rival Novak Djokovic 7-6(4), 6-3 on Saturday and reach his first Italian Open final since 2014. The top-seeded Spaniard will face defending champion Alexander Zverev who overcame fourth seed Marin Cilic of Croatia 7-6(13), 7-5 in the other semi-final.
Lucas Pouille crowned a glorious French charge at the U.S. Open on Sunday by ousting 14-times grand slam singles winner Rafa Nadal in a five-set thriller. The 22-year-old Pouille, seeded 24th, won a deciding tiebreak 8-6 to complete a 6-1 2-6 6-4 3-6 7-6(6) marathon victory and join compatriots Jo-Wilfried Tsonga and Gael Monfils into the last eight at Flushing Meadows.
Factbox on Serbia's Novak Djokovic who won his sixth Australian Open men's singles title on Sunday.
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.
Images from the Australian Open in Melbourne on Thursday.
Summary of sports events and persons who made news on Saturday
Gunning for yet another Grand Slam title, India's old war horse Leander Paes and his Czech partner Radek Stepanek have been seeded fifth at the Australian Open and they will open their campaign against Czech pair of Lukas Dlouhy and Lukas Rosol.
Andy Murray avoided a 'double bagel' humiliation by Roger Federer at the ATP Tour finals on Thursday but conceded that even if he had played well he would not have lived with the "exceptional" brilliance of the Swiss.
Federer said the rate of dropouts would fall if the slams switched to best-of-three-sets rather than best-of-five as it would mean matches were more like "a sprint to the finish line" rather than being "a marathon" but the people he really felt sorry for on Tuesday were the fans.
Britain's Andy Murray believes Gala Leon's appointment as Spain's Davis Cup captain was handled "horribly".
IMAGES of the all the action from Day 1 of the Australian Open played at Melbourne Park on Monday