Liverpool U18 coach Steven Gerrard has revealed manager Jurgen Klopp is still unhappy with his defence.
Gerrard has also hinted Klopp's long-term plan includes a goalkeeper change.
He said: “I still think he's trying to find it [Klopp's preferred back four].
“He's obviously brought Van Dijk in as a big-money signing and I'm sure he'll try and make more signings moving forwards.
“I think he's still trying to find his back five."