The fifth-seeded Sabalenka, who won the Adelaide International title in the first week of the year, hit 29 winners to her opponent’s seven as she won her fifth consecutive match.
“It wasn’t that easy, I’m super-happy to start with the win,” said Sabalenka, who will play American Shelby Rogers in the second round. “I have to work on my mindset and stay calm and not get too upset when I make mistakes. I really believe this is the only thing missing in my game.”
Sabalenka, who has yet to win a Grand Slam singles title, hasn’t made it past the fourth round at the Australian Open in five previous visits.