Brighton manager Graham Potter hailed the return of fans as a "fantastic" step forward after his team drew 1-1 with Chelsea in a pre-season friendly on Saturday.
Spectators were allowed into a Premier League ground for the first time in almost six months, with about 2,500 watching the match at the Amex Stadium on England's south coast.
The game was one of a number of trial events announced by the government for a phased return of spectators following the ban on mass gatherings in March due to the coronavirus outbreak.