Chelsea youth coach Joe Cole says manager Frank Lampard made the right call selling David Luiz to Arsenal.

Lampard, who left Derby County for Stamford Bridge in the summer, decided to let Luiz move to Arsenal on deadline day.

And Cole believes that decision has proven to be a good one.

He said: "Allowing David Luiz to move on was a massive decision knowing he had [Fikayo] Tomori.

"He has been brilliant and you can only give him praise."