Defending champion Novak Djokovic began his quest for a fourth successive Wimbledon title with a hard-fought four-set win over South Korean Kwon Soon-woo under the Centre Court roof.
Djokovic is aiming to win a seventh title at SW19, which would take him one behind Roger Federer's men's record.
Djokovic's win takes the former world number one's victory streak at Wimbledon to 22 matches.
[Source: BBC]
