World No 1 and 20-time Grand Slam champion Novak Djokovic has revealed he set out to win four Grand Slams and Olympic gold before the start of the season.
Djokovic targets four Grand Slams and Olympic gold
World No 1 and 20-time Grand Slam champion Novak Djokovic has revealed he set out to win four Grand Slams and Olympic gold before the start of the season.