Novak Djokovic overcomes Soonwoo Kwon test to begin Wimbledon defence
Djokovic 6-3 3-6 6-3 6-4 Kwon: The six-time champion was given a brief scare as he opened play under the roof on Centre Court
Djokovic 6-3 3-6 6-3 6-4 Kwon: The six-time champion was given a brief scare as he opened play under the roof on Centre Court