Contracts

Every time a player is in the starting 11 or gets subbed on during the match, 1 contract match is consumed. The manager also consumes 1 contract match if he is managing the team. Therefore a player with 0 contract cards can't be in the starting 11 or on the bench. Managers without contract can't coach the team.

Contract Cards
It is important to notice the difference between player and manager contract cards. The player contract cards can only be applied to players while the manager contracts can only be applied to managers.