Cant :
"Second teams can have a squad of 23 players, 19 of which must be born after 1st January 1996. At least 16 players in the matchday squad must have been in a club affiliated to the FIGC for at least seven seasons. Players can constantly switch between the first and second team to ensure that the squad and age limits are met but they will no longer be able to play for the second team after making five league appearances for the senior side."