Djokovic won almost everything he could in his career, except for Olympic gold.
Knowing his ''hunger'' for victories and records, I think next year’s Olympics will be one of his main goals.
He believes that he is the best tennis player of all time, which means that he must be the best in everything, in all competitions.
These Olympics, given his age, are his last chance for a gold medal.
Same applies for Federer and he already won Olymic gold (although only in double). While Djokovic believes he is the best player every, I think he is only ranked 3rd, in my eyes far behind Nadal and Federer. I think Federer also has the most natural talent, I always enjoy watching him play.
That's good news! Lets hope Federer will participate in this but he needs to be 100%.