Novak Djokovic believes that the rivalry between himself, Roger Federer and Rafael Nadal keeps him motivated for the big tournaments.
Djokovic also revealed that preparations for the Australian Open have been different because of the ATP Cup.
Novak Djokovic believes that the rivalry between himself, Roger Federer and Rafael Nadal keeps him motivated for the big tournaments.
Djokovic also revealed that preparations for the Australian Open have been different because of the ATP Cup.