He's also now tied with Roy Emerson for fourth place all-time in career Grand Slam men's singles titles with 12 and has the top guys very much. Novak Djokovic often referred to by the hypocorism Nole, is a Serbian professional tennis Djokovic has won 12 Grand Slam singles titles, the fourth most in history, and held the No. 1 spot in the ATP . Djokovic is known for his often humorous off-court impersonations of his fellow players, many of whom are his friends. Novak Djokovic career statistics · Boris Becker · Jelena Genčić · Hypocorism. Djokovic and Murray are two of the world's best, but one man has significantly more major wins than the other.