Novak Djokovic has taken four hours to overcome Croatian teenager Dino Prizmic in the 10-time champ's longest first round match in Melbourne, Amanda Anisimova has produced the biggest Day 1 upset dispatching 13th seed Liudmila Samsonova, Andrey Rublev has survived a thriller against Brazilian fireball Thiago Seyboth Wild — our experts analyse just how he managed to keep his campaign alive in a dramatic five-setter, and preview Naomi Osaka’s AO comeback match against Caroline Garcia, plus Aussie stage legend Tim Minchin takes a look at tennis through the lens of showbiz.