1. During the European Cup, players who accumulate two yellow cards will automatically be suspended from the next match. This rule encourages player self-discipline and maintains the fairness of the game.
2. Players who accumulate two yellow cards in the group stage or knockout stage will be unable to participate in the following match, posing a challenge to the team's tactical arrangements.
3. The accumulation period for yellow cards starts from the beginning of the group stage until the end of the quarter-finals. All accumulated yellow cards will be reset after the quarter-finals.
4. Before the semi-finals and final, all players' yellow card records will be reset, giving players with accumulated yellow cards a fresh start.
5. For example, a player who accumulates two yellow cards in the group stage will miss the first knockout stage match, but if the team advances, the player's yellow card record will be cleared, allowing them to play in subsequent matches.
6. Such a rule design punishes foul play while maintaining the spectacle and competitiveness of the game.
