Activities Sports & Athletics The Officials on a Soccer Field An Explanation of Every Official's Function on the Field Share PINTEREST Email Print GettyImages Sports & Athletics Soccer Basics Playing & Coaching Soccer Players Soccer Culture Baseball Basketball Bicycling Billiards Bodybuilding Bowling Boxing Car Racing Cheerleading Cricket Extreme Sports Football Golf Gymnastics Ice Hockey Martial Arts Professional Wrestling Skateboarding Skating Paintball Swimming & Diving Table Tennis Tennis Track & Field Volleyball Other Activities Learn More By Joshua Robinson Joshua Robinson is a European sports writer specializing in soccer. He is also sports editor for the Wall Street Journal's European edition. our editorial process Joshua Robinson Updated July 09, 2018 Professional soccer games are run by four officials, usually dressed in black or some bright color designed to clash with the jerseys of both teams. Each has a separate but important function during the match and they are all in constant communication with each other in certain leagues thanks to the recent introduction of microphones and earpieces. The Referee The referee is the most important of the four officials on the pitch. Only he carries a whistle and he uses it to signal the starts and stops of play. Those include kickoff, half-time, full-time, goals, and fouls. In the event of a foul, the referee can blow his whistle to award a free kick — or a penalty kick if it happens to occur inside the penalty area — and penalize the player who committed it. A referee’s first recourse is usually a stern verbal warning. But beyond that, the referee can show the player a yellow card and take his name — this is frequently known as a “booking” because the referee writes the name down in a little book. A player who receives two yellow cards in a game is sent off and his team will have to continue with one fewer players on the pitch. Besides the yellow card, the referee also carries a red card which he can use to punish especially serious infractions. The red card means an immediate dismissal. The referee also has the power to dismiss a manager from the sideline. The Linesmen There are two linesemen in an officiating crew, each assigned to one half of the field. As their name indicates, they patrol the length of the touchline between the halfway line and one goal line. They each carry a brightly-colored flag and use it to signal when the ball has left the pitch either for a throw-in, a goal kick, or a corner kick. Linesmen will also wave their flags to catch the referee’s attention if they believe they have spotted a foul. Finally, it is also the linesman’s responsibility to signal when an attacking player is in an offside position by raising his flag. In order to have the best possible view to make that call, the linesman stays level with the last defender of the team in his half of the field at all times. You can read more about the offside rule. No matter what, however, a linesman’s call does not take effect unless the referee blows the whistle. The Fourth Official The fourth official, positioned on the touchline between the two opposing benches has three primary functions. First, he keeps track of all the stoppages during the game. And, at the end of each half, he informs the players how much time will be added on to make up for them by flashing a number on a board. The fourth official is also in charge of verifying substitutions. He checks a substitute’s equipment before recording the change and posting the numbers of the players involved on the board. Finally, the fourth official is also the managers’ primary liason to the referee. All too often, they bear the brunt of a manager’s dissatisfaction with the referee’s decisions. A Fifth Official? There is a vocal movement inside soccer to include in-game replays in order to guarantee the accuracy of those refereeing decisions that turn matches — was a player offside when he scored, did the ball cross the line, did the foul really merit a penalty… Some of the plans for introducing video replays call for adding a fifth official, stationed in a booth above the field, to review every contested decision. But so far, soccer’s world governing body has been reluctant to move in that direction.