When asked if the Merseyside club should consider selling Alexander-Arnold, Johnson told Betfred: "Yes, absolutely. They’d have been having talks that we’re not aware of for sure because you can’t allow players to get so far into their contract when they’re so valuable. It would be a complete head loss to let him go for free. Nobody wants to see him leave, but you may as well cash in because they know something’s going on already. I don’t know if Trent wants to leave or the club are happy for him to leave, but it would be stupid for Liverpool to not cash in if he is going to leave when his contract expires."
He added: "You never want to lose your best players, but I don’t know if it would make much of a difference to Liverpool if he leaves in January or at the end of the season if he was planning to leave the club. It would have an impact overall because you never want to see your best players go and you don’t want to let them go easily."