The perfectionist in Ash Barty yearns for more - and that could spell huge trouble for Daria Gavrilova s Australian Open hopes.
Barty and Gavrilova - or Ash and Dash - go head to head in a blockbuster all-Australian second-round showdown at Melbourne Park on Thursday.
There ll be no room for sentiment, with friendships placed on hold as the pair fight for a place in the last 32 of their home grand slam.
Not even a ruthless 6-0 6-0 first-round victory over Danka Kovinic was enough to satisfy Barty.
Unbeaten in five matches since making her return from a year out of tennis only this month, Barty is not overly surprised at her supreme level so early in her comeback