Sixth seed Gilles Muller saved one match point at 4-5 in the deciding set to beat Alexandr Dolgopolov 6-3, 3-6, 7-5 in two hours and seven minutes. Muller, a semi-finalist in Sydney for the past two years, struck 14 aces and will next challenge qualifier Matthew Barton.
Eighth seed Marcel Granollers required two hours and 37 minutes to beat lucky loser Santiago Giraldo, a replacement for the fatigued Fernando Verdasco, 6-7(5), 7-5, 6-3. Watch Highlights
This month only keeps getting better for 17-year-old Alex De Minaur. Last week, the young Aussie qualified for an ATP World Tour event for the first time. On Tuesday, the Sydney native captured his first ATP World Tour match win, beating Frenchman Benoit Paire 6-3, 3-6, 7-6(1). Watch Highlights
De Minaur, who received a wild card into the Sydney main draw, will meet Russian Andrey Kuznetsov in the second round. Kuznetsov advanced after seventh seed Martin Klizan retired from their match down 2-6, 6-1, 3-0 – due to a foot injury.
Read & Watch: Aussie Teen Makes Grand Entrance In Brisbane
Mischa Zverev won 31 of his 35 first service points to get past the experienced Nicolas Almagro 6-4, 6-2 in 70 minutes and set up a clash against fourth seed Pablo Carreno Busta.
Jordan Thompson knocked out lucky loser Nikoloz Basilashvili 7-5, 6-2 and now goes onto face fifth seed Philipp Kohlschreiber. The 22-year-old Australian had been set to face his doubles partner, fellow wild card Thanasi Kokkinakis, who withdrew prior to their match due to an abdominal strain. Kokkinakis had been due to play a singles match for just the second time since October 2015, having undergone right shoulder surgery on 29 December 2015. Watch Highlights
Colombians Through To Doubles QFs
Colombians Juan Sebastian Cabal and Robert Farah knocked out third seeds Lukasz Kubot and Marcelo Melo 7-6(3), 4-6, 10-5 for a place in the quarter-finals against Serbians Viktor Troicki and Nenad Zimonjic.