If a player is on the Allowed Players List of more than 1 clan in the cup, they are only eligible to play for 1 clan of their choice. To play for another clan during the cup they must meet the following criteria.
Their new clan are not in a lower division than the previous clan.
The clan have not already added 3 new players during this Cup.
The clan have not already added 1 new player during the Playoff Stage.
The player must spend 1 matchweek (from Monday to Sunday) without playing for any clan in this cup. For Example if the player played on the Thursday of matchweek 1, they will not be eligible to play for their new clan until Monday of matchweek 3.
A matchweek is a week in which matches are scheduled to be played according to the official match roster, this includes the Wildcard week directly after the Group Stage. Any extra weeks off before playoffs/semi-finals etc are not considered to be a matchweek.