Tennis: 'Chasing tennis history has a lot of weight' - Djokovic on Serena's emotional exit

Novak Djokovic commented on Serena William's emotional exit from the Australian Open after the American was defeated by Naomi Osaka in the semi-finals on Friday. "When you're chasing big things that are related to the history oft he sport, obviously it has a lot of weight, a lot of pressure," he said. "I can empathize with Serena and what she's going through. She's such an amazing champion that inspires both male and female athletes around the world in what she has been doing, I mean, still is doing in her age, is extraordinary," he added.