Factbox on Serbia's Novak Djokovic who won his sixth Australian Open men's singles title on Sunday.
Men's top seed Novak Djokovic and women's number two Angelique Kerber look to book berths in the last four of the US Open as the quarter-finals of the year's last Grand Slam get underway on Tuesday.
Both men are 31 years old but have little else in common.
From Rafael Nadal's shock exit in the first round to Novak Djokovic's clinical run. We bring you the highs and lows as the Australian Open moves into its business end.
There were glimpses of the formidable Rafa Nadal as the eight-times champions swept aside French Open champion Stan Wawrinka 6-1, 6-4 on Friday to reach the Monte Carlo Master semi-finals.
Defending champion Novak Djokovic was handed a tough opening round at Wimbledon when Friday's draw paired him with Germany's Philipp Kohlschreiber.
Novak Djokovic's muted celebrations after ending Rafa Nadal's reign as claycourt king were partly out of respect for his Spanish victim but mainly due to the fact the his French Open mission is far from accomplished.
A summary of Novak Djokovic's rise in the tennis circuit in photos.
Images from Day 4 of the French Open matches played at Roland Garros in Paris on Wednesday
Yannick Noah is looking to restore old-fashioned values to the French Davis Cup team as he embarks on his third stint as captain.
Five-time champion Roger Federer brushed aside Lukas Rosol on Thursday to set up a mouthwatering semi-final clash with Novak Djokovic in the Dubai Championship.
The fifth seed's success made it the first time a Japanese male player had reached the last eight at Roland Garros since Jiro Satoh made it to the semi-finals in 1931 and 1933.
Confident Shapovalov primed to step up against Djokovic
Fifth seed Roger Federer was dumped out of the Shanghai Open, losing to Frenchman Gael Monfils 6-4, 6-7(5), 6-3 in the third round on Thursday.
Penpix of the top men's contenders at the 2017 French Open:
Nick Kyrgios must not let playing on Rod Laver Arena douse his natural fire when he plays Jo-Wilfried Tsonga in the standout match of the Australian Open third round on Friday, according to former champion Mats Wilander.
World number one Novak Djokovic recovered from a first-set loss to overcome Germany's Mischa Zverev while Britain's Andy Murray swept past Belgium's David Goffin to reach the Shanghai Masters semi-finals on Friday.
Nadal converted two of three break chances to claim his 19th win in 22 encounters against the Swiss.
Drained Medvedev pulls out of home tournament in Moscow
Novak Djokovic beat Casper Ruud in the French Open final to win a men's record-extending 23rd Grand Slam title.
Roger Federer thinks a tie-breaker at 12-12 would be the best compromise following calls for Wimbledon to step into line with the US Open and scrap long deciding sets.
France won their 10th Davis Cup title when Lucas Pouille crushed Steve Darcis 6-3, 6-1, 6-0 to give the hosts a 3-2 victory in the final against neighbours Belgium on Sunday.
Wimbledon was invaded by thousands of flying ants on Wednesday, causing much annoyance to players, officials and ticket holders alike - but there was little anyone could do to drive out the pests.
French federation president Bernard Giudicelli has hit out at the country's male players after their disappointing run at Roland Garros, saying they lacked physical strength and grit.
UAE Royals returned to winning ways by posting a thrilling 26-21 victory over Manila Mavericks on Day 2 of the Singapore leg of the International Premier Tennis League.
Borna Coric and Marin Cilic put Croatia in complete control of the Davis Cup final on Friday, leaving hosts and defending champions France facing what looks like mission impossible.
Switzerland took advantage of Novak Djokovic's absence to open a 2-0 lead over last year's runners-up Serbia in their Davis Cup tie on Friday with Roger Federer and Stanislas Wawrinka winning their singles rubbers.
Roger Federer produced a vintage performance to best Andy Murray 6-3, 6-4, 6-7, 6-3 and move into the semi-finals of the Australian Open.
The tension mounted and temperatures soared at the U.S. Open as top seed Novak Djokovic and Andy Murray set up a sensational quarter-final, and Serena Williams made a 2014 grand slam breakthrough.
The Swiss played some of his best tennis this year but it was still not enough to stop him from being on the receiving end of a 7-6 (3), 2-6, 6-4 defeat against the powerful Argentine and his 220 kph serve.
Tommy Haas kept alive his slim chances of qualifying for next month's ATP World Tour Finals when he edged past near namesake Robin Haase 6-3, 4-6, 6-4 to lift his 15th career title at the Vienna Open on Sunday.
The volatile 17th seed had a quiet evening by his standards in his opening match on Monday, with just the one violation for unsportsmanlike behaviour when he asked spectator, in no uncertain terms, to be quiet while he was serving.
Tennis titans Rafael Nadal and Novak Djokovic met with Thai Prime Minister Prayuth Chan-ocha on Friday and visited the site of a deadly Bangkok bomb blast.
It was the best match of Wimbledon's opening week as, amongst the expected histrionics, both men hit the heights with some relentlessly powerful and accurate serving in particular.
The 17-times Grand Slam champion, looking to give Switzerland their first Davis Cup title, lost his first singles rubber against Gael Monfils on Friday five days after withdrawing from the World Tour final against Novak Djokovic.
US Open champion Stan Wawrinka was knocked out of the Shanghai Open after a third round defeat, while Novak Djokovic and Andy Murray moved into the quarters.
The second round of this year's Wimbledon has equalled the record for withdrawals and retirements for a single round at a Grand Slam in the professional era after two more players quit on Thursday.
David Goffin put the visitors ahead by beating Lucas Pouille in the opening singles before Jo-Wilfried Tsonga levelled for 1-1 when he defeated Steve Darcis in the second singles on Friday.
The Australian Open has seen many unheralded players punching above their weight. Rediff.com takes a look at a few such unseeded players who went the distance in the new millennium.
He leads the men's seedings ahead of defending champ Roger Federer, with Bulgarian Grigor Dimitrov seeded third.