No fears for Sinner as in-form Italian hits Open stride

Italy's Jannik Sinner is into the third round of the Australian Open without dropping a set. (Lukas Coch/AAP PHOTOS)

Jannik Sinner is hardly shaking in his tennis shoes ahead of a potential Australian Open semi-final meeting with Novak Djokovic after racing into the third round.

Italy's fourth seed trounced young Dutch qualifier Jesper de Jong 6-2 6-2 6-2 in one hour and 43 minutes on Wednesday to enhance his status as a huge threat to 10-time champion Djokovic.