Home favourite Nick Kyrgios battled into the fourth round of the Australian Open ©Getty Images

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Kyrgios triumphed in a five-set thriller, beating Karen Khachanov of Russia 6-2, 7-6, 6-7, 6-7, 7-6 ©Getty Images
Kyrgios triumphed in a five-set thriller, beating Karen Khachanov of Russia 6-2, 7-6, 6-7, 6-7, 7-6 ©Getty Images
He will come up against foe Rafael Nadal next, with the Spaniard seeking his second Australian Open title ©Getty Images
He will come up against foe Rafael Nadal next, with the Spaniard seeking his second Australian Open title ©Getty Images
Nadal was up against compatriot Pablo Carreño Busta ©Getty Images
Nadal was up against compatriot Pablo Carreño Busta ©Getty Images
He eased past Carreño Busta 6-1, 6-2, 6-4 ©Getty Images
He eased past Carreño Busta 6-1, 6-2, 6-4 ©Getty Images
Nadal stayed to sign autographs for his fans ©Getty Images
Nadal stayed to sign autographs for his fans ©Getty Images
Second seed Karolina Plíšková of the Czech Republic crashed out of the tournament ©Getty Images
Second seed Karolina Plíšková of the Czech Republic crashed out of the tournament ©Getty Images
She was beaten by Anastasia Pavlyuchenkova of Russia 7-6, 7-6 ©Getty Images
She was beaten by Anastasia Pavlyuchenkova of Russia 7-6, 7-6 ©Getty Images
Fifth seed Elina Svitolina of Ukraine then also exited the competition ©Getty Images
Fifth seed Elina Svitolina of Ukraine then also exited the competition ©Getty Images
She was comfortably beaten by Garbiñe Muguruza of Spain 6-1, 6-2 ©Getty Images
She was comfortably beaten by Garbiñe Muguruza of Spain 6-1, 6-2 ©Getty Images