The 19-year-old defeated Khachanov from two match points down in front of a "crazy" crowd.

On the court, Rybakina and Fritz defended their title; on the sidelines, there was just as much, if not more action, taking place.

Iga Swiatek, Ben Shelton, Jessica Pegula and more lit up Stadium 2 in the fast-paced Tie Break Tens showdown.