Jurgen Klopp has urged Liverpool fans to take advantage of the opportunity to fill Anfield for Wednesday night's Champions League clash with Red Star Belgrade.
Due to UEFA sanctions, the Serbian giants have been banned from bringing any away fans.
Asked if he had experienced a similar situation before, Klopp said: "When I was a player, I played in empty stadiums - they were not banned they were only not interested in the football we played!
"A stadium full of only one crowd… I have never experienced."