A warning, indicated by a verbal admonishment, or a caution, signalled by showing a player or substitute a yellow card.
A red card, or ejection
They are technically called assistant referees.
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.
yes
Referees
Green card in soccer means that when a player respects the referees' decision and be a sportsmanship person
Soccer referees are graded by levels, not by classes. Informally, a referee might be considered "Class A" if they are certified International referees.
There is a dot net website called Soccer Referee Information or SOCREF. This site is intended to be a source for information for current and aspiring soccer referees.
The answer is obviously. Yes.
A soccer referee earns about 750 dollars a game.