It's a WarningA yellow card is a warning. Once a player has been booked, he has to be extra careful for the rest of the game; if he gets
another yellow card, this will result in a red card - and he will be sent off the pitch and his team will be at a disadvantage (with one fewer player).
In addition, a yellow card is added to your total tally of yellow cards for the season. If a player gets 5 yellow cards, he is suspended for a game.
The most common reasons for getting a yellow card:
- Unsporting behavior of any type, e.g., a dangerous slide tackle.
- Dissent (disagreeing with the referee's or linesman's decision).
- Persistent infringement of rules, e.g. constantly tripping people.
- Entering or leaving the field without permission.
- Delaying the game, perhaps by refusing to stand the proper distance from a free kick, or not throwing in the ball for a long period of time.