Ashley Cole was undoubtedly one of the best left-backs in the world during his playing days.
The former Arsenal and Chelsea man established himself at the very top during a glittering 20-year career, so if there's a man who knows a thing or two about full-backs it's him.
The 39-year-old is now a regular on Sky Sports' football coverage and, with England playing away in Belgium in the Nations League on Sunday night, Cole was asked about current Chelsea left-back Ben Chilwell.
Chilwell cost the Blues £50million in the summer - one of seven big-name signings at Stamford Bridge - and has settled in well.
And Cole has revealed that Chilwell spoke to him before completing his big-money move to west London from Leicester.
Cole said: "I think coming into a young team probably helped him, but from minute one, he was hungry to prove that he was good enough.
"That's what he said to me, that he wants to come here, hit the ground running, what do I have to do? I said: ‘Listen, just keep working hard and want to play for the club, want to win,’ and straight away, he’s come in and done that.
"I think Chelsea look defensively better with him. Again, they have that better balance. I think he can handle the ball in every area - defensively, in the middle-third, he can deal with it and of course, attacking-wise, he can cross, he can shoot, he can combine. He’s got it all."