World number five Aryna Sabalenka of Belarus, playing as a neutral, continued her bid for a first Grand Slam by comfortably beating Belgium's Elise Mertens 6-2, 6-3 ©Getty Images

Photo Gallery

Sabalenka is set to play Olympic champion Belinda Bencic in the fourth-round after the Swiss beat Italy's Camila Giorgi ©Getty Images
Sabalenka is set to play Olympic champion Belinda Bencic in the fourth-round after the Swiss beat Italy's Camila Giorgi ©Getty Images
Poland's Magda Linette sprung the biggest surprise of the day in the women's singles, beating Russian neutral Ekaterina Alexandrova 6-3, 6-4 ©Getty Images
Poland's Magda Linette sprung the biggest surprise of the day in the women's singles, beating Russian neutral Ekaterina Alexandrova 6-3, 6-4 ©Getty Images
Caroline Garcia of France, the world number four, matched her best run at the Australian Open to date by coming from behind to win her third-round tie against Germany's Laura Siegemund ©Getty Images
Caroline Garcia of France, the world number four, matched her best run at the Australian Open to date by coming from behind to win her third-round tie against Germany's Laura Siegemund ©Getty Images
A home crowd watched Alex de Minaur beat France's Benjamin Bonzi in straight sets on Rod Laver Arena ©Getty Images
A home crowd watched Alex de Minaur beat France's Benjamin Bonzi in straight sets on Rod Laver Arena ©Getty Images
Russian player Andrey Rublev, left, competing as a neutral, eased past Britain's Dan Evans, right, 6-4, 6-2, 6-3 ©Getty Images
Russian player Andrey Rublev, left, competing as a neutral, eased past Britain's Dan Evans, right, 6-4, 6-2, 6-3 ©Getty Images
Ninth seed Holger Rune of Denmark is set to play Rublev in one of the ties of the fourth-round after a straight sets victory over France's Ugo Humbert ©Getty Images
Ninth seed Holger Rune of Denmark is set to play Rublev in one of the ties of the fourth-round after a straight sets victory over France's Ugo Humbert ©Getty Images
Nine-time winner Novak Djokovic of Serbia overcame injury issues to beat Bulgaria's Grigor Dimitrov in straight sets ©Getty Images
Nine-time winner Novak Djokovic of Serbia overcame injury issues to beat Bulgaria's Grigor Dimitrov in straight sets ©Getty Images
Britain's Sir Andy Murray, a five-time runner-up in Melbourne, lost in four sets to Spain's Roberto Bautista Agut ©Getty Images
Britain's Sir Andy Murray, a five-time runner-up in Melbourne, lost in four sets to Spain's Roberto Bautista Agut ©Getty Images