Liverpool boss Jurgen Klopp admits they face an unusual experience tonight against Champions League opponents Red Star Belgrade.

Red Star will have no supporters in the ground, thanks to a UEFA ban.

"When I was a player I played in empty stadiums," Klopp joked. "They were not banned they were not interested!

"Red Star are the team in Serbia.

"When we have the ball, we have to attack with all that we have."