MELBOURNE, Australia — A searing hot day turned into a sweltering night at the Australian Open and eventually Coco Gauff let off steam, shattering her racket after a lopsided loss to Elina Svitolina that cost her a place in the semifinals.
Day 10 of the season-opening major began with top-ranked Aryna Sabalenka beating 18-year-old Iva Jovic 6-3, 6-0 on Tuesday before the Extreme Heat Policy was activated and the roof was closed on Rod Laver Arena.
The center court was still under cover when No. 12 Svitolina stunned the third-seeded Gauff 6-1, 6-2 in 59 minutes to earn a semifinal against Sabalenka.
The men's quarterfinals also were split into day and night sessions, with one played under a roof and the other under the stars.
Top-ranked Carlos Alcaraz moved within two wins of completing a career Grand Slam after a 7-5, 6-2, 6-1 victory over Australia's Alex de Minaur to close play.
In his first semifinal in Australia, Alcaraz will take on 2025 runner-up Alexander Zverev, who beat 20-year-old Learner Tien 6-3, 6-7 (5), 6-1, 7-6 (3) under cover in an afternoon match.
They're 6-6 in head-to-heads, with Zverev winning the quarterfinal here in 2024, their only meeting in Australia.
''It's going to be a great battle,'' Alcaraz said. ''I'm looking forward to playing him here, taking revenge.''