If they are inscribed U23 then they are not allowed to play for Fabril. While I think many could play at that level, some may only play 10 games in 2B instead of playing 30+ for Fabril who will also be in a promotion scenario most likely. Players like Sanmartin and Adri Castro are considered U23 but it may be better to inscribe them with Fabril and bring them up as the season goes along. I'd imagine
It was very surprising to see a 2nd GK brought in as I thought Brea could be the backup but FV must have not liked what he saw in the training sessions. Either way, there is still 10-15 moves still to be made in terms of buying/selling players as well as loans to be finalized.