Djokovic reveals Open fitness cloud

By Darren Walton
Updated January 22 2019 - 2:01pm, first published 1:58pm
Novak Djokovic remains on track to win a record seventh Australian Open title.
Novak Djokovic remains on track to win a record seventh Australian Open title.

Novak Djokovic will carry a mystery ailment into his Australian Open quarter-final with Japanese ironman Kei Nishikori on Wednesday night.