"He's a genius," coach Goran Ivanisevic said of Novak Djokovic.
The Russian wishes he could have that passing shot on set point back, among other things.
The American learned a lot in Paris over the last two years, and put that knowledge to work at the US Open.
"I have to learn about it and find solution in these kind of matches, but he played a great match," Carlos Alcaraz said of Daniil Medvedev.
Coco Gauff will try to take a page from the Serena Williams playbook on Saturday night in New York.
The Russian is hoping for another 12 out of 10 performance.
Novak Djokovic used Ben Shelton's trademark hang-up move against him. Here's how the 20-year-old American reacted.