TENNIS

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.

Roger Federer was hilariously trolled by his children over Rafael Nadal's ranking after he told them that he was going to an awards gala to potentially win a prize.

In a year that saw Roger Federer win seven titles after playing a limited number of games, ATP chief Chris Kermode has admitted that there could be changes made to the tennis schedule.

Novak Djokovic will return to action for the first time since Wimbledon in Abu Dhabi. He is hoping that a winning return will help in his quest for the 2018 Australian Open title.

Roger Federer beat Marin Cilic in 2017 to win his record eighth Wimbledon title beating the record set by American tennis legend Pete Sampras.

Rafael Nadal won six titles and two Grand Slams - the French and the US Open - and ended the year as the world number one.

Roger Federer has begun preparations for the 2018 campaign after hinting that he could again play a limited schedule similar to 2017.

Former world number one Lleyton Hewitt believes Roger Federer played the best he ever has against Rafael Nadal in 2017 as he went unbeaten against the Spaniard in four meetings.

Former Wimbledon finalist Mark Philippoussis has revealed why he believes Roger Federer trumps Rafael Nadal, Novak Djokovic and Andy Murray as the greatest of all time.

Roger Federer played just 57 matches in 2017 and only lost five times, while Nadal played 78 matches losing 11 times.