Hayden is already 22, Sterry and Aarons are still 21 until November, again not sure of the rules but thought is was 21 and under before the end of the window. We'll not be registering Armstrong of course as he is on a season long loan.
I'm pretty sure it's January 1st. As long as the player is born in 1996 they don't need to be registered. So Aarons will need to be, Merino won't.
Aye.
We are probably looking at something like this.