Gone are the crush of fans seeking selfies with their favorite player, the distant cheers from an outer court as a baseline forehand lands inside and the warm embrace between competitors at the end of a match.

In their place are hand sanitizer machines, daily temperature checks and virtual hugs, making for a sterile atmosphere at the 2020 US Open — the first Grand Slam to take place in the COVID-19 era.

The US National Tennis Center in New York normally buzzes with energy and excitement during Open week, but not this year, with the tournament occurring in a spectator-free quarantine bubble.