Women's world number two Caroline Wozniacki and fourth-seed Elina Svitolina also eased to third round wins at Melbourne Park along with Slovakia's Magdalena Rybarikova, Spaniard Carla Suarez Navarro and Belgian Elise Mertens. Estonian Anett Kontaveit pulled off the only major upset of the day as she knocked out French Open champion Jelena Ostapenko, leaving Maria Sharapova and Angelique Kerber as the only two former grand slam winners left in the women's draw.
"That's one of the best wins of his career." @NickKyrgios reels off five points in a row in the deciding set tie-break to defeat  Jo-Wilfred #Tsonga and progress to the 4R!#AusOpen pic.twitter.com/Oiihmmr602 — #AusOpen (@AustralianOpen) January 19, 2018
"When I saw him out here, I was so nervous. I just wanted him to think I was cool!," Kyrgios said. The Australian 17th-seed faces a tough battle against world number three Grigor Dimitrov in the last 16. MURRAY BROTHERS HAIL EDMUND'S FIGHTING SPIRIT Three-times grand slam champion Andy Murray and brother Jamie took to Twitter to congratulate fellow Briton Kyle Edmund for his impressive victory over Georgia's Nikoloz Basilashvili.
“"He [#Tsonga] was a guy I looked up to as a kid. It was 2008 that I was going to all of his practice sessions with a new ball and got it signed. To get a win against him is a dream come true."- @NickKyrgios#AusOpen pic.twitter.com/yaql9irXxS — #AusOpen (@AustralianOpen) January 19, 2018
"Physical test passed.. Mental strength passed..I reckon that's biggest win of @kyle8edmund career! Well done kedders @AustralianOpen," Andy said. Jamie tweeted: "So happy for you @kyle8edmund What a fight! #slugfest." DIMITROV TAKES RUBLEV REVENGE World number three Grigor Dimitrov avenged his second round defeat by Andrey Rublev at last year's U.S. Open, beating the Russian 6-3 4-6 6-4 6-4 to book a place in round of 16. CARRENO BUSTA BOOKS FOURTH ROUND SPOT World number 11 Pablo Carreno Busta's measured approach earned him a 7-6(4) 4-6 7-5 7-5 victory over Big-serving Gilles Muller in the third round. Luxembourg's Muller fired 74 winners, including 40 aces, but failed to control the match, having chalked up 36 unforced errors. DOMINANT SVITOLINA THROUGH TO ROUND FOUR World number four Elina Svitolina cruised into the round of 16, beating fellow Ukrainian Marta Kostyuk 6-2 6-2. It ends the dream run of 15-year-old Kostyuk, who became the youngest player to reach the third round of a grand slam since Croatian Mirjana Lucic-Baroni at the 1997 U.S. Open.
Kyle Edmund has that #FridayFeeling ?He's only gone and reached round four of the Aussie Open! https://t.co/IIhmCr8af6 #AusOpen #bbctennis pic.twitter.com/62N5aEs6CV — BBC Tennis (@bbctennis) January 19, 2018