Rafael Nadal suffered a shock 7-5, 6-3 defeat by Austrian Dominic Thiem in the Madrid Open quarter-finals on Friday, a result that means the Spaniard will lose the world number one ranking.
Rediff.com takes a look at players who tested positive for use of banned substances over the years.
After losing the first set, Medvedev changed his approach midway through the second set, the Russian going for broke with pretty much every shot, particularly on second serve.
As Real Madrid star striker Cristiano Ronaldo watched, the World No 4 Nadal went past Italian Bolelli to set up a quarter-final clash against 10th seed Grigor Dimitrov.
The Briton, who was thrashed 6-3 6-1 by the Croatian in the Dubai Championships in 2015, performed poorly in the first set and after recovering in the second he then surrendered his serve in the seventh game, giving Coric three break points.
A red hot Rafael Nadal ended a seven-match losing streak against Novak Djokovic in emphatic fashion by thrashing the world number two 6-2, 6-4 on Saturday to reach the final of the Madrid Open and move within a step of a third consecutive clay-court title.
David Ferrer has backed fellow Spaniard Rafael Nadal to bounce back to winnings ways, saying the latter will surely be a major contender in all the grand slams next year provided he remains injury-free.
Novak Djokovic says he has lost all trust in the anti-doping programme in tennis and fears he could become a victim of its 'negligence' after fellow Serb Victor Troicki failed to have his doping ban overturned on Tuesday.
Saturday's match between Djokovic and Nadal will be the 50th between the two great rivals, who have won a combined 26 Grand Slam titles.
Novak Djokovic's already brilliant season took on another dimension on Sunday when the world number one became the first man to win six Masters titles in a calendar year by dismissing Andy Murray 6-2, 6-4 in Paris.
IMAGES from Day 6 of the French Open at Roland Garros in Paris on Friday.
The Indian Wells tennis tournament was set to start on Tuesday, attracts the game's top players from both the men's and women's sides and drew a record 475,000 fans over its two-week run last year. It was cancelled over concerns about the spread of a coronavirus in Southern California.
Rafael Nadal withdrew from the Indian Wells tournament on Saturday with a knee injury, shortly before his eagerly-awaited semi-final clash with great rival Roger Federer.
Rafael Nadal consolidated his flying start to the clay-court season by taking a record-extending fifth Madrid Open title on Sunday, battling past a determined Dominic Thiem to win 7-6(10-8), 6-4.
World number one Novak Djokovic received a free pass into the third round of the U.S. Open when Jiri Vesely of the Czech Republic withdrew from their match on Wednesday due to a left forearm injury. The walkover provided the top-seeded defending champion with an extended break to improve his niggling left wrist injury before his next match against either Guido Pella of Argentina or Mikhail Youzhny of Russia.
Greek tyro Stefanos Tsitsipas' dream run at the Rogers Cup continued on Friday as the teenager toppled defending champion Alexander Zverev 3-6, 7-6(11), 6-4 to reach the semi-finals in Toronto.
Novak Djokovic and Andy Murray are determined and inspired by the opportunity to win their first French Open title.
Here are eight men to watch on the Roland Garros clay.
Nadal no longer 'immovable' object in Paris.
Rafael Nadal moved seamlessly from months of clay court success to a satisfyingly smooth first-round victory on grass as he opened his Wimbledon campaign with a commanding 6-1, 6-3, 6-2 victory over Australian John Millman on Monday.
World number one Rafael Nadal set a new record of winning 50 consecutive sets on a single surface by beating Argentine Diego Schwartzman 6-3, 6-4 on Thursday to reach the Madrid Open quarter-finals.
Melbourne man McNamara won five singles titles and 19 in doubles and teamed up with compatriot Paul McNamee to win the Australian Open doubles in 1979 and Wimbledon twice in 1980 and 1982.
World number one Novak Djokovic fended off a resurgent Rafael Nadal 7-5, 7-6 (4) in a pulsating battle on Friday to reach the semi-finals of the Italian Open.
The World No 1 beat Japan's Kei Nishikori for his 63rd career title
Top seed Novak Djokovic beat Canadian Felix Auger-Aliassime 7-5, 7-6(1) to reach the semi-finals of the Italian Open on Friday and move within one win of 1,000 career victories.
The latest tennis rankings have been announced by the ATP and WTA
Rafael Nadal will skip the Miami Open that begins later this month in a bid to recover from a back injury in time for the clay court swing
Daniil Medvedev and Karen Khachanov crushed second seed Dominic Thiem and third seed Alexander Zverev respectively to set up an all-Russian semi-final at the Rogers Cup in Montreal on Friday.
For someone who is the defending champion at Melbourne Park, Stanislas Wawrinka is remarkably upbeat about the lack of focus falling upon him.
World number two Rafael Nadal dropped a set at the Barcelona Open for the first time in four years before advancing to the last 16, beating Argentine Leonardo Mayer 6-7(7), 6-4, 6-2 on Wednesday.
Images from Day 4 of the 2021 French Open in Paris on Wednesday.
WTA chief promises 'strong reactions' to ban on Russian, Belarusian players
Stefanos Tsitsipas pulled off one of the biggest wins of his short but remarkable career by beating Rafael Nadal 6-4 2-6 6-3 on Spanish soil on Saturday to book his place in the Madrid Open final against world number one Novak Djokovic.
A summary of sports events and persons who made news on Sunday
Germany's Alexander Zverev won the battle of the young guns against Denis Shapovalov on Saturday to set up a Madrid Open final against Austria's Dominic Thiem.
Rafael Nadal's announcement on Friday that he will miss the ATP World Tour Finals because of appendicitis ended a difficult year for the Spaniard during which he has endured injury, illness and worrying defeats.
Images from Day 5 of the 2021 US Open in New York on Friday.
As the curtains fall on another year, Rediff.com brings you all the action from the sports field that defined 2019.
'I do understand Rohan is disappointed for not getting the award, but it was because he did not meet the criteria for the award in 2016. He should see the criteria before making any comment'
Karolina Pliskova lost her cool over a line call and bashed a hole into the umpire's chair with her racket after suffering a 3-6, 6-3, 7-5 defeat by Maria Sakkari in the Italian Open second round on Wednesday.