Chelsea should re-sign Bournemouth's Nathan Ake according to club scout Piet de Visser.
The Dutch defender was signed to the Cherries for £20million in June 2017 after a loan period with the south coast side.
Ake made just 17 appearances for the Chelsea senior side before his signing to Bournemouth, where he has already made over 100 appearances.
Frank Lampard has regularly chosen to play a young side this season with the likes of Fikayo Tomori, Mason Mount and Tammy Abraham being given game time.
The Blues scout believes that Ake could have made a breakthrough into the first team along with the rest of this young talent.
De Visser said to the Dutch newspaper De Volksrant: "Ake should have played for Chelsea by now. He's so good.
"How often does he not score with his head? He has timing and insight. I hope they buy him back.
"That boy is perfect for them and he has played with Lampard."