If he can go somewhere and get 15 games in the PL then hopefully it'll help his game no end. He's nowhere near the first team here so it has to be better than sitting in the reserves.
We only really have three centre backs right now
If one of them goes down with an injury/suspension then we literally have no cover in that position
Harsh on young Mason, but if he bides his time he'll probably get a chance because I'll be shocked if Mina, Zouma and Keane go the whole season without getting hurt or suspended