James Duckworth holds no fears as he sets his sights on a massive Australian Open upset in a centre-court showdown with two-time defending champion Jannik Sinner.
The 33-year-old Sydneysider is within reach of a career-best result at his home slam, after conjuring a mighty comeback to down qualifying lucky loser Dino Prismic 7-6 (7-4) 3-6 1-6 7-5 6-3 in the first round.
