Novak Djokovic gets Wimbledon title defense off the ground with battling win

Novak Djokovic got his Wimbledon title defense off to a winning start on Monday, but he had to work hard for his 6-3 3-6 6-3 6-4 victory against world No. 81 Kwon Soon-hoo.

On the first day of action at Wimbledon, Djokovic opened play under the roof of Centre Court in a bid to win his fourth straight title at SW19 and first grand slam of the year.