Competition Rosters
It is possible to add players and team officials for each club for each specific competition. That is not mandatory, but in case you use it, you will only be able to choose players and officials for the competition from the roster
By clicking on the "Add player" or the "Add team official" button on the Clubs tab of the competition, the list of registered players (or team officials) of that club will appear, according to the category and the competition type.