The Rule Five draft has Two parts. The MLB portion where a player taken has to spend the year on the new teams 25 man roster, Teams are allowed to protect 40 players. The AAA phase is for eligible players who were not on the 40 Man protected list or on the AAA Protected list. I think the number this year was 38. The drafting team can claim the player and may assign them to any level in the minors. The only Stipulation was that they had to have had an open spot on their AAA roster at the time of the pick,