Speaking on Liverpool's long-term interest in the player, L'Equipe journalist Loic Tanzi said: "Liverpool wanted him when he was playing for Monaco," he told talkSPORT.
"[Liverpool manager Jurgen] Klopp went to see him and they were negotiating while they were on the plane.
"The relationship between him, Liverpool, and Klopp is there. I think they have a chance."