One team that Castles briefly spoke about was Southampton as he revealed that the club are looking to bring in a young backup full-back.
The Saints have been linked with a move for Brandon Williams who would fit the mould of a young full-back.
However, nothing has happened with that deal yet but if Castles is to be believed that is the profile of player they are looking for.
He said: (49:58) “You’ve got clubs like Southampton looking for backup full-backs, young backup full-backs, which is a very unusual demand to have in the transfer market.
“Usually if you’re trying to get a backup player midway through a season; it’s usually an experienced one, rather than a young one.”
Do you think Southampton will sign a full-back?
Yes, we will get someone
No, we won't get anyone
TIF Thoughts on Southampton’s transfer plans…
The Saints currently have Yan Valery and Kyle Walker-Peters, who are both natural right-backs and then they have Ryan Bertrand, Sam McQueen, and Jake Vokins, who are natural left-backs.
However, Bertrand only has until the end of June left on his contract and has so far refused to sign a new deal, which has seen him linked with a move away from the south coast, so if he were to go, then you could see why Southampton might want someone like Williams, given that he is a natural left-back.
We will have to see if the Saints get anyone in the remainder of the transfer window, but if Castles is to be believed, they have a clear idea of who they want to sign, which we think is a good thing.