The 49-year-old returned to complete his second round on Saturday morning, carding three more birdies and a solitary bogey in his remaining 14 holes.
Aryna Sabalenka came from a set down to beat Elena Rybakina 4-6 6-3 6-4 to win the Australian Open on Saturday.
After overcoming Elena Rybakina to win the Australian Open title, Aryna Sabalenka is now looking to chase down Iga Swiatek.
Paul Pogba has not played for Juventus since rejoining the club but will be fit to feature against Monza on Sunday.