Soccer Rules Fouls

The yellow card is used to communicate that a player, substitute or
substituted player has been cautioned.
The red card is used to communicate that a player, substitute or
substituted player has been sent off.
Only a player, substitute or substituted player may be shown the red
or yellow card.
The referee has the authority to take disciplinary sanctions from the
moment he enters the field of play until he leaves the field of play after
the final whistle.
A player who commits a cautionable or sending-off offence, either
on or off the field of play, whether directed towards an opponent, a
team-mate, the referee, an assistant referee or any other person, is
disciplined according to the nature of the offence committed.

See the training video info HERE for more soccer skills.

A player is cautioned and shown the yellow card if he commits any of
the following seven offences:
• unsporting behavior
• dissent by word or action
• persistent infringement of the Laws of the Game
• delaying the restart of play
• failure to respect the required distance when play is restarted with
a corner kick, free kick or throw-in
• entering or re-entering the field of play without the referee’s
permission
• deliberately leaving the field of play without the referee’s
permission
A substitute or substituted player is cautioned if he commits any of
the following three offences:
• unsporting behavior
• dissent by word or action
• delaying the restart of play

A player, substitute or substituted player is sent off if he commits any
of the following seven offences:
• serious foul play
• violent conduct
• spitting at an opponent or any other person
• denying the opposing team a goal or an obvious goal-scoring
opportunity by deliberately handling the ball (this does not apply
to a goalkeeper within his own penalty area)
• denying an obvious goal-scoring opportunity to an opponent
moving towards the player’s goal by an offence punishable by a
free kick or a penalty kick
• using offensive, insulting or abusive language and/or gestures
• receiving a second caution in the same match
A player, substitute or substituted player who has been sent off must
leave the vicinity of the field of play and the technical area.