The 32-year-old, who has not played since retiring injured in the US Open semi-finals, cited an abdominal injury.
Serbia's Novak Djokovic, who beat Switzerland's Roger Federer to win his 16th Grand Slam title on Sunday:
Roger Federer, not known for serious slip-ups in his flowing run to a record 17 grand slam singles titles, has come clean about the left knee injury that sidelined him for nearly two months.
Change might be afoot though, according to American great John McEnroe
With Serena Williams vying to safeguard her World No 1 ranking and Djokovic fighting off a wrist injury, expect to see a few surprises at the fourth and final Grand Slam of the year
Former India tennis star Vijay Amritraj says the new Davis Cup format will not affect the country much as it is still playing home and away games in Group I and not the World Group matches.
Milos Raonic overcame third seed Grigor Dimitrov 7-5, 3-6, 6-3 to reach the third round at the Madrid Open on Tuesday and set up an all-Canadian clash with teenager Denis Shapovalov.
Audacious coups by Andy Murray and Angelique Kerber have transformed the tennis landscape and they will begin 2017 eyeing the kind of domination that few would have thought possible at the start of a seismic year.
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.
Djokovic is clubbed with Federer, Juan Martin Del Potro, David Goffin and Alexander Zverev.
Ferrer, 37, announced earlier in the year he would end his 19-year career at the Madrid Open and prolonged his time on court by a day by beating Roberto Bautista Agut on Tuesday, but was easily overpowered by world number four Zverev.
Argentina's Diego Schwartzman ended a two-year wait for his second ATP tour title as he overpowered an exhausted Fernando Verdasco to win the Rio Open 6-2, 6-3 on Sunday.
Spaniard Feliciano Lopez has not beaten Roger Federer in 13 attempts but he finally got one over him on Tuesday without even needing to lay a glove on the Swiss great.
Rafael Nadal and Marc Lopez of Spain won the Olympic men's doubles tennis title on Friday, beating Romania's Florin Mergea and Horia Tecau to secure their country's third gold medal of the Rio Games.
Take a look at six of the up-and-comers who could upset the top names at the year's first Grand Slam.
'Remarkable discipline for training, competition, sacrifice, perfection, a little crazy but a legend of a bloke. Bravo Andy'.
Thirteen years on and his record next to the Bois de Boulogne stands at an incredible 85 wins and two losses.
Novak Djokovic lost his momentum in the second half of last season and was toppled as the world number one by Andy Murray because his work-rate dropped, the Serbian's former coach Boris Becker said on Wednesday. Speaking a day after the two terminated their cooperation by mutual consent, German Becker said Djokovic's need to spend more time with his family had derailed him on the court.
In the absence of an injured Yuki, a lot would depend on how the left-handed Prajnesh, who won a singles bronze medal at the Asian Games, performs.
Although Kyrgios dropped the opening set his level of play and interest rose dramatically after the pep talk and he swept the next three sets for a 4-6, 7-6(6), 6-3, 6-0 win.
Roger Federer took a big step towards securing his endangered place in the ATP World Tour Finals by overcoming rising Canadian talent Vasek Pospisil 6-3, 6-7(3), 7-5 in the Basel Open semi-finals on Saturday.
Andy Murray begins his late-season assault on Novak Djokovic's world number one ranking at the China Open this week hoping to take a chunk out of the 4,695-point gap separating them.
Roger Federer says he does not regret passing up the chance to topple great rival Rafael Nadal from the top of the world rankings at the ATP Finals in London this week.
Defending champion Simona Halep was knocked out of the French Open 6-2, 6-4 by 17-year-old American Amanda Anisimova in a quarter-final shock.
Zverev defeated Anderson 6-4, 6-4 and captured his fourth title of the year in the finals played on Sunday.
Summary of sports events and persons who made news on Tuesday
For soccer great Diego Maradona, Cuban revolutionary Fidel Castro was more than a friend and fellow Latin American legend, he was "a second father." Maradona said Castro's death late on Friday hit him like a tennis ball to the chest served by Juan Martin del Potro, the Argentine player he cheered on in the Davis Cup final where he received the news. "I wept uncontrollably," Maradona told reporters on the sidelines of the tennis tournament. "After my father, it's the deepest sorrow I know."
Rafael Nadal and Roger Federer will set aside their long-time rivalry when they play for Europe against the rest of the world in the inaugural Laver Cup tournament which starts on Friday.
Nick Kyrgios has the weapons to beat Andy Murray in their Wimbledon fourth-round clash on Monday but must play the match on his own terms, according to former champion Lleyton Hewitt.
Novak Djokovic no longer sees winning Grand Slam titles or staying top of the men's ATP rankings as a priority in his tennis career, Serbia's world number one said on Friday.
Andy Murray suffered his first defeat in nearly three months on Thursday when he was beaten by Latvia's Ernests Gulbis in the third round of the Rogers Cup. Playing just his second match since winning Wimbledon, Murray fell 6-4, 6-3 in less than an hour and a half in one of the key lead-up events to the US Open.
Defending champion Sloane Stephens was sent packing from the Miami Open on Sunday after a 6-3, 6-2 loss to Germany's Tatjana Maria in the third round.
Ana Konjuh was not a year old when Serena Williams played her first US Open match but both will be in the Arthur Ashe Stadium spotlight on Wednesday, with four gripping quarter-finals to take centre stage at the year's final Grand Slam.
This is not the first time that Murray has won our hearts with his stance against sexism.
With mind and body both more willing now, the only way for the World No 3 is up, says Dhruv Munjal.
Roger Federer ended Grigor Dimitrov's seven-match winning streak and showed the Bulgarian he has some way to go to live up to his 'Baby Federer' tag with a 6-3 7-6 (2) quarter-final victory at the Basel Open on Friday.
Dhruv Munjal on why Novak Djokovic may yet win that highly contested title.
'I feel happy to be part of this rivalry, but at the same time, I played even more matches with Novak (Djokovic) than with Roger in such important matches, too'
Gael Monfils said playing Novak Djokovic in temperatures of 40 degrees Celsius on Thursday was a 'risk' to health and that the 25-second rule between points should have been relaxed.
Both won in style on Sunday, with Spanish fifth seed Nadal pouncing on Guido Pella's serve to break the Argentine five times en route to a 6-3, 6-2 victory in sizzling afternoon heat on the stadium hard court.