and 28th of december. djokovic travelled to australia on january 4. how likely is it that that is a glitch in the system? it's not likely, but we don't know all the aspects and it's possible that there is some other explanation, so i really hope the public institutions will provide transparency and clarify all this. so far, djokovic, the serbian institute of public health, and its office of information technology have not responded to bbc requests for comment. i think everyone's polarised at the moment on novak djokovic, which will be hurtful to him, but it won't do his reputation any good if it's found out that he's been telling porky pies. rafael nadal will contest the australian open final on sunday. locked on 20 grand slams with the serbian, a 21st is unprecedented in men's tennis.