It's almost three years since Nadal collected his 14th major title at the 2014 French Open, and it remains to be seen whether the Spaniard can ever return to the level required to win another and close the gap on Roger Federer's tally of 17.
The Spaniard was forced to withdraw from the French Open after the second round due to a wrist injury, missed Wimbledon and then returned to reach the fourth round of the US Open.
Nadal opted to miss the final months of the season, choosing to focus on being fit for 2017 and his first outing saw him reach the quarter-final in Brisbane before losing to Milos Raonic, underlining the level that he has dropped to.
He hasn't even made it past the quarter-final stage of a Grand Slam in his last eight attempts, and crashed out at the first-round stage for the just the second time in his career at the Australian Open in January.
Nadal's five set defeat to Fernando Verdasco in Melbourne set the tone for his year, but he can look back on three finals Down Under including the 2009 where he beat Roger Federer in a classic.