Barcelona forward Antoine Griezmann admitted it would be "very strange" to play behind closed doors.
The La Liga leaders will resume their season with a trip to Mallorca on June 13 amid the coronavirus pandemic, which led to the campaign being suspended in March.
Griezmann said there was no doubt it would be unusual to play with no fans in attendance due to Covid-19.
Editors' Picks
"The first game will be in Mallorca, but it will be very strange to play without an audience," he said during a conversation on Twitch on Thursday.