Goalies don’t normally come through at 21. A lot mature much later like Nick Pope. It’s a case of physical and mental development.

Griffiths is unique as he’s already had a fair amount of appearances by that age. He won’t be the finished article but the club think a lot of him.

I’d give him a go, what is there to lose? Button has easily been the worst in the league and there’s no sign of that changing.