A referee issues a yellow card as a warning to a player. Two yellow cards result in a red card, after which that player must leave the game permanently. Reasons for yellow cards includeDangerous play. High kicking near a players head, for example.
Illegal obstruction. This happens when a player intentionally takes a position between and an opponent when that player isnt within playing distance of the ball.
Charging the goalkeeper in the goal area. Goalkeeper playing the ball with his hands when the ball is kicked by a teammate.Goalkeeper Infringements. Unsafe play such as charging the goalie.Goalkeeper taking more than four steps while controlling the ball.
Intentionally wasting time at the end of a game.