i am designing a database for a football league and one of the requirements is Although the match is between two teams, it is common that many players are named in the team but they do not actually participate in that match when it takes place. reserved players and can be called any minute by the coach to join the match.
my confusion is i dont know how to represent this in erd
my main entities are player, teams, and competition
and if the player that was a reserve eventually played how it will be represented as well.
pls if you need more elaboration pls post it
thanks