But Mills thinks for next season, he should look to go out and get some consistent minutes on loan before returning the season after.
He explained to Football Insider that Williams’ chances will be limited while Alexander-Arnold and Robertson are playing the way they both are, and therefore it would be better for Williams’ development if he left.
Mills said: “You have to be realistic at times.
“It is the club that he loves but is he going to play week in, week out? How many opportunities is he going to get?