First, huge congratulations to Coco Gauff despite her exit last night. Big things ahead for her. Also last night, Kyrgios looked sullen and bored and deservedly lost. It's very difficult to understand what's going on in that guy's head.
As for today, the slate is super strong. Start out at 11:00 on Armstrong to watch Ash Barty take on #18 Qiang Wang.
Then skip over to Ashe for Federer v Goffin (or if you don't have Ashe tickets, stick to Armstrong to watch Konta v. Pliskova). Post-Fed comes Serena, so don't expect any free time to grab lunch at the food court & it'll be chicken fingers for all. Post-Serena, there's a last match at Armstrong in the day session (Medvedev v. Koepfer).
As for the night session, Wawrinka is looking spry, so we may get our first our first high-intensity match between multiple Grand Slam winners on the men's side when he takes on Djokovic, who's shoulder seems to have healed up. Before them comes Madison Keys taking on Svitolina.