Reilly Opelka, who defeated Novak Djokovic in the Brisbane International quarters, was trailing 4-1 in the first set when he had to withdraw due to a back injury

World No.1 Aryna Sabalenka has underlined her credentials as the Australian Open favourite with a fighting 4-6 6-3 6-2 victory over Polina Kudermetova in the Brisbane International final on Sunday.

Aryna Sabalenka won her 18th career title at the Brisbane International, defeating Polina Kudermetova in a three-set final. This victory sets her up well for the Australian Open, where she aims to defend her title.