Sabalenka is only the third woman to reach six consecutive Grand Slam semifinals since the turn of the century after Americans Jennifer Capriati and Serena Williams.
The Belarusian baseliner was once famous for failing to master her emotions on court but the Sabalenka who has demolished all comers in Melbourne this year seems far more at ease with herself.
Her social media feeds are filled with lighthearted moments, including an impromptu dance with her coaching staff during a practice session.
“You know, I’m just playing point by point, and that’s it, and fighting for every point without overthinking about my dreams, about what I want to do, about how many Slams I want to win and all that stuff,” she said during the tournament.
Levity aside she remains a formidable competitor, with the raw power to blow her opponents away from the back of the court.
After her defeat at Flushing Meadows, Sabalenka made clear she wanted to ensure she was not a one-hit wonder.
And in her current form, Gauff will be the underdog again.
“It’s always great battles against Coco, with really great fights. I’m happy to play her, and I’m super-excited to play that semifinal match.”