So if I’m understanding correctly, we’re to believe that he took an in-no-way-opportunistic test on the 16th. Presumably he wasn’t having symptoms as he didn’t isolate pending the results. Let’s give him the benefit of the doubt that he had genuine reasons eg being a close contact. Then he goes about his daily life for a couple of days, does the usual stuff; massive public gathering with children, masks off interview with L’Equipe then some time after that he gets his (very belated results), then presumably isolates for a few days and is then spotted practising in Marbella just after Christmas, free of Covid as per the test on the 26th. That’s quite the needle to thread.
Assuming it isn't a totally invented infection to side-step Aussie law and piss on your average citizen who's sacrificed for the greater good. Djokovic has no shame.