Rafael and Toni have won everything there is to win – 16 Grand Slams, 30 Masters Series titles and two Olympic gold medals in the singles and doubles events.
Paul Annacone coached Pete Sampras and Tim Henman at various points in their careers and was Roger Federer's mentor between 2010 and 2014.
The world number 4 enjoyed a magnificent 2017 season on the ATP Tour, claiming five titles, including the Montreal Masters in which he beat Roger Federer in the final.
World number one Rafael Nadal has revealed what his most special achievement was in a year that saw him completely turn back the clock.
Hopman Cup director Paul Kilderry has heaped praise on Roger Federer's remarkable 2017 season as the world number two gets ready to kick off his season in Perth.
Federer suffered a knee injury a day after his 2016 Australian Open semi-final loss to Novak Djokovic which resulted in him requiring surgery.
Henman believes that both Federer and Nadal go in as favourites for the Australian Open should they be 100% fit and no one should be surprised by their achievements.
Doubts have emerged on world number one Rafael Nadal's fitness after the Spaniard pulled out of the Abu Dhabi exhibition event due to continued discomfort in his knee.
With all the preparation behind him, Raonic expects Djokovic to make a blast in the Australian Open, trumping the likes of Federer and Rafael Nadal.
Murray was previously confirmed to take part in Melbourne for the 2018 Australian Open, which begins on 15 January.
Doubts are starting to emerge over Andy Murray's participation at the 2018 Australian Open as the former world number one is still training in the UK.
Wawrinka last featured at Wimbledon in July when he was sent packing in the first round after his shock loss to Daniil Medvedev.
Childhood friend and former teammate Marco Chiudinelli claims despite all the successes that Roger Federer has achieved in tennis, he is still the same person.
Toni Nadal has warned Rafael Nadal and Roger Federer that they will not be able to emulate their achievements of 2017 next year as Novak Djokovic and Andy Murray are set to return to action.
Toni Nadal believes his nephew Rafael Nadal will last long enough to overtake Roger Federer's impressive Grand Slam record of 19 major titles.
Tennis legend Boris Becker has backed Andre Agassi to succeed as Novak Djokovic's coach as the Serbian prepares to make his comeback ahead of the 2018 season.
Novak Djokovic has not played since his loss in the quarter-finals at Wimbledon earlier this year and will return to action for the first time at the Qatar Open in Doha.
The former world No.4 beat Rafa in the fourth round of the Roland Garros in 2009.
The Swiss ace clinched the title this year, beating Nadal in the finals, overpowering the Spaniard in a gruelling contest.
Nadal will be making his 14th appearance in ATP Barcelona, having won it a record 10 times.
Novak Djokovic's coach has revealed how Roger Federer was able to neutralise world number one Rafael Nadal in 2017 as he managed four wins in four meetings against the Spaniard.
There is one reason why the next generation have struggled to take over the likes of Rafael Nadal, Roger Federer, Novak Djokovic and Andy Murray, according to Uncle Toni.
Nadal has already confirmed that he will compete in the 66th edition of the tournament (23-29 April 2018).
Federer has penned a new deal with Swiss chocolate brand Lindt, an association which first started in 2009.
World number two Roger Federer does not expect to repeat his 2017 performances in the new year as he anticipates the return of Novak Djokovic, Andy Murray and more from injury.
"Australian Open, Wimbledon and US Open are cornerstones, everything which lies between we'll take it from there," Federer said.
Stan Wawrinka and Novak Djokovic will feature for the first time since Wimbledon at the Mubadala World Tennis Championships in Abu Dhabi where a Rafael Nadal meeting is possible.
World number four Alexander Zverev reveals which player he considers "perfect" in tennis. The German youngster also mentions his goal for 2018.
Roger Federer had his most successful campaign in a decade in 2017, winning seven titles, including two Grand Slams.
Juan Carlos Ferrero talks to IBTimes UK about Alexander Zverev, Rafael Nadal and what to expect from tennis in 2018.