Quick check of Wiki and his competition seems non existent, he needs to be playing down south clearly.
who else is in u21s? could it be hes in league one?
Scott Loach of Watford is first choice, then it's the goalies of Yeovil and Rochdale. So he's clearly playing at a better standard than both.
I haven't seen Forster play, but I can tell you that Loach is a decent keeper who makes the occasional howler, good shot stopper, good kicker, but pretty poor at coming off his line to claim crosses etc. Bit overrated, but if we get a decent amount of £££ for him when the time comes, I won't complain.