After a change in her coaching team, some minor technical adjustments and a boost in confidence, Coco Gauff enters the Australian Open on a roll.

Coco Gauff is the favorite to win the Australian Open and has been getting into the swing of things by adding a new element to her game - a grunt.

Given everything she has already achieved in her fledgling career – and the weight of expectation she has borne as one of tennis’ rising superstars – it’s sometimes easy to forget that Coco Gauff is still only 20 years old.