Djokovic has won 7 titles on grass courts, including six Wimbledon titles. Besides hard courts and grass courts, Djokovic has won 18 titles on clay, including two French Open titles and 11 Masters titles which is second only to Rafael Nadal’s (known as King of Clay) record of 26. Djokovic is one of two players (with Robin Söderling) to defeat …

Link: https://en.m.wikipedia.org/wiki/List_of_career_achievements_by_Novak_Djokovic