Romania's Simona Halep set up a quarter-final clash with Serena Williams at the Australian Open ©Getty Images

"Photo_Gallery"

Halep overcame Polish teenager Iga Świątek in the fourth round ©Getty Images
Halep overcame Polish teenager Iga Świątek in the fourth round ©Getty Images
America's Williams triumphed against Aryna Sabalenka of Belarus ©Getty Images
America's Williams triumphed against Aryna Sabalenka of Belarus ©Getty Images
Japan's Naomi Osaka also booked a place in the quarter-finals, coming back from one set down to defeat Spaniard Garbiñe Muguruza ©Getty Images
Japan's Naomi Osaka also booked a place in the quarter-finals, coming back from one set down to defeat Spaniard Garbiñe Muguruza ©Getty Images
Bulgaria's Grigor Dimitrov reached the quarter-finals of the men's singles ©Getty Images
Bulgaria's Grigor Dimitrov reached the quarter-finals of the men's singles ©Getty Images
He stunned world number three Dominic Thiem to progress ©Getty Images
He stunned world number three Dominic Thiem to progress ©Getty Images
World number one Novak Djokovic was able to compete in his fourth round match, despite suffering an abdominal injury in the third round ©Getty Images
World number one Novak Djokovic was able to compete in his fourth round match, despite suffering an abdominal injury in the third round ©Getty Images
He overcame Canada's Milos Raonic ©Getty Images
He overcame Canada's Milos Raonic ©Getty Images
Germany's Alexander Zverev was another player to reach the quarter-finals ©Getty Images
Germany's Alexander Zverev was another player to reach the quarter-finals ©Getty Images
Competition was again played without spectators, with Melbourne currently in a circuit breaker lockdown ©Getty Images
Competition was again played without spectators, with Melbourne currently in a circuit breaker lockdown ©Getty Images