Juve are now in talks to sign the Dutch teen.
“If Juve sign De Ligt then it's over. Again. And we go directly to the season after," Capello told Corriere dello Sport.
“De Ligt is the best defender out there. He allows you to defend with two, freeing up the full-backs, like he has at Ajax.
“With him, Juve will have hit the jackpot. Without him, well, it could help the others get closer.
“Let me be clear. When I talk about others, I'm referring exclusively to Napoli and Inter.