Three-time major finalist Ons Jabeur lost 6-0, 6-2 to Russia’s Mirra Andreeva on Rod Laver at the Australian Open on Wednesday.
And then 2018 champion Caroline Wozniacki also lost to a young Russian on the No. 3 show court.
Two other 16-year-old players lost on center court to highly-ranked players: No. 10 Beatriz Haddad Maia accounted for Alina Korneeva 6-1, 6-2 and Sabalenka overpowered Brenda Fruhvirtova 6-3, 6-2.
US Open winner Coco Gauff, still a teenager herself, extended her winning streak to nine matches at Grand Slams with a 7-6 (2), 6-2 win over fellow American Caroline Dolehide.
She'll next play Alycia Parks, who beat 2021 US Open runner-up Leylah Fernandez 7-5, 6-4.
Tunisia’s sixth-seeded Jabeur went out in 54 minutes against the up-and-coming Andreeva.
“I was really nervous before the match because I’m really inspired by Ons and the way she plays,” said Andreeva, who lost in the junior final at the Australian Open last year. “Before I started on the WTA Tour, I always watched her matches and was always so inspired."
It is the second successive year that Jabeur has lost in the second round in Melbourne.