Aryna Sabalenka impresses again in Australian Open warm-up

World number one Aryna Sabalenka said she still had room for improvement after a second dominant win in the Brisbane International on Thursday. Sabalenka was pushed at times by 36-year-old Sorana Cirstea, but was never really troubled by the Romanian as she notched a 6-3, 6-3 win in 70 minutes. READ: Aryna Sabalenka wants ‘Battle