Interesting - it must have been a late call-up, because if the game is during an international break, clubs have to release players to national teams, unless there is an injury or the player declines the invitation.Puerto Rico has a game Saturday but apparently Hernandez won't be allowed to join PR for it.
The rest of the PRNT met on Monday so either this was a late call up or NYCFC just told them off and won't release him until after the game. Vieira is a fan of Hernandez so it's no surprise.