The Discovery player rule; you have to request interest in that player and you have 10 slots so you have rights to that player in the case he is willing to join your team, the rights can be traded as well, but the rights are given randomly, if it happens to land to another team, you have to trade for it. Like NBA, NHL and NFL, this is because the players are owned by the MLS, not individual teams. You have to stake the claim first before you can actually offer any contract.
1
