Eurosport expert Mats Wilander analyses Novak Djokovic's "near perfect" play after his win over Ryan Harrison in Melbourne.
Wilander explains why playing with a "softer arm" has helped the world number one control his serve and groundstrokes, and believes his "top heavy" racket is key.
He takes an in-depth look at what makes the Serb so special, and he goes on to predict that it would take something "extraordinary" for Djokovic to be beaten in Melbourne.