Story byMatthew Futterman and Charlie EccleshareSat, January 24, 2026 at 2:31 PM UTC·10 min readFollow The Athletic’s Australian Open coverageWelcome to the Australian Open briefing, where The Athletic will explain the stories behind the stories on each day of the tournament. On Day 7, the Melbourne weather defined the day, a legend said farewell and more. AdvertisementAdvertisementAdvertisementHow did players cope with the extreme heat?Extra sleep, trying not to think about it, and tweaking their rackets. These were among the steps players were taking ahead of a 100-degree day at the Australian Open Saturday. Hydrating well and fueling as much as possible from the night before were also on the agenda, with Jessica Pegula, the American world No. 6, saying that for her team, pre-fueling is even more important than nutrition on the day. Whatever she did seemed to work, as Pegula set up a fourth-round match against compatriot and defending champion Madison Keys with a straight-sets win over Ukraine’s Oksana Selekhmeteva. Keys went to bed early — as did Lorenzo Musetti ahead of beating Tomáš Macháč — and played with a racket strung a pound heavier, with more tension, to prevent the ball flying off the strings in the quicker and bouncier conditions.