The Spaniard has won six titles in 2017, which include two Grand Slams – the French and the US Open, only bettered by Roger Federer.
Marat Safin has questioned the quality of the younger generation after Nadal and Federer dominate 2017 season.
Radek Stepanek announced his retirement earlier this month owing to fitness issues and will now continue his tennis career as a coach.
World number two Roger Federer claims he is not thinking about retirement for now after the 36-year-old's remarkable year that saw him win seven titles, including two Grand Slams.
Martina Hingis won the first of her 25 Grand Slam titles in 1997 before Federer and Wawrinka won their first major titles in 2003 and 2014 respectively.
Andy Murray ended his season after his quarter-final loss at Wimbledon in July this year owing to a long standing hip injury.
Lewis Hamilton compared his F1 title battle with Sebastian Vettel to the matches between Roger Federer and Rafael Nadal.
Heavyweight champion Anthony Joshua has revealed how he wants to stamp his mark and create a legacy similar to the likes of Roger Federer, Lionel Messi and Cristiano Ronaldo.
Former world number one Marat Safin believes that while Andy Murray will have some success against Rafael Nadal and Roger Federer, he does not see Novak Djokovic faring as well.
Federer and Nadal struggled with injury in 2016 with the former playing a limited schedule to stay fit in 2017. Djokovic and Murray ended their 2017 season early owing to injury.
Former world number one Marat Safin believes Rafael Nadal deserves more credit as a tennis player in comparison to Roger Federer because of how hard he had to work.
Lleyton Hewitt has picked Roger Federer as the favourite over Rafael Nadal for the upcoming 2018 Australian Open in January.
The Swissman played more than 50 games in the current year, winning seven titles, including two Grand Slams – the Australian Open and Wimbledon.
Roger Federer was bestowed with an honorary doctorate by the University of Basel's Department of Medicine.
Federer has invited teenager Felix Auger-Aliassime to spend part of December training with the Swissman.
The Swiss ace skipped clay this year following a blistering start to the season that saw him win three of the four events he entered.
Former world number 9 and fellow Swiss Marc Rosset believes Roger Federer was mentally tired by the end of the ATP Finals in London.
The Swiss ace believes it is a step in the right direction as it will make the earlier rounds of Grand Slams more attractive for both fans and players alike.
Roger Federer has won seven titles in 2017 including two Grand Slams to end the year as the world number two.
Norman teamed up with Wawrinka as a coach in 2013 and together they spent four years, winning three Grand Slam titles.
Carlos Moya has warned Novak Djokovic and Andy Murray that emulating Rafael Nadal and Roger Federer will not be as easy as it looks upon their impending returns.
Muguruza completed a brilliant year, winning Wimbledon with a victory over Venus Williams back in June.