What is most disconcerting about Novak Djokovic's worst loss since 2008? He has no answers to restore his past aura of invincibility and his fellow players know it.
- Djokovic ousted in five sets Down Under
- Serena weaves by another former top-10 star
- Murray: Ankle sore but I'll be ready for match
- McEnroe rips into Kyrgios after loss to Seppi