Here's the throwback to Serbian tennis great Novak Djokovic winning his first Wimbledon title at the All England Club in 2011. Djokovic beat Spain's Rafael Nadal, who was also the defending champion coming into the 2011 Wimbledon, to lift the first of his four Wimbledon titles. Djokovic has won 15 Grand Slam titles so far and enters 2019 Wimbledon as one of the favourites.