sometimes a card
and
sometimes they wll just speak to the player
A red card, or ejection
A warning, indicated by a verbal admonishment, or a caution, signalled by showing a player or substitute a yellow card.
3 referees are in soccer and football
The Official, besides being able to Caution a player with a Yellow Card or Expel a player from the field (Red Card), may also choose to warn the player of what he feels is not reckless or dangerous enough to warrant either a yellow or red card. Usually this means listening to the Referees reasoning of why he/she is warning you.
They are technically called assistant referees.
Referees
yes
Soccer referees are graded by levels, not by classes. Informally, a referee might be considered "Class A" if they are certified International referees.
Green card in soccer means that when a player respects the referees' decision and be a sportsmanship person
In soccer, a foul is when a player commits an unfair or illegal act against an opponent. Referees determine fouls by observing the game and enforcing the rules set by the governing body of soccer, FIFA. Fouls can result in free kicks, penalties, or even player ejections depending on the severity of the offense.
The answer is obviously. Yes.
A soccer referee earns about 750 dollars a game.