How Does Football Work? Rules & Basics

What Is Football?

Football, known as soccer in some countries, is the world’s most popular sport. It is played on a rectangular grass or artificial turf field with a goal at each end. The game is governed by a set of rules called the Laws of the Game, maintained by the International Football Association Board (IFAB). Matches are played between two teams, each with 10 outfield players and one goalkeeper. The objective is simple: score more goals than the opposing team within the allotted time.

Football is played at many levels, from casual kickabouts in parks to professional leagues watched by millions. The basic rules are easy to grasp, but the tactics and skills can take a lifetime to master. Understanding the core principles helps you enjoy watching or playing the game.

The Basic Rules of Play

The game is split into two halves, usually 45 minutes each, with a 15-minute halftime break. The clock runs continuously, and the referee adds extra time at the end of each half to compensate for stoppages like injuries or substitutions. The referee is the main official on the pitch, assisted by two assistant referees (linesmen) and, in professional matches, a video assistant referee (VAR) system.

Players can use any part of their body except their hands and arms to control and move the ball. The only player allowed to use hands is the goalkeeper, but only within their own penalty area. The ball is out of play when it fully crosses the touchline (side line) or goal line. Throw-ins are taken when the ball goes out over the touchline, and goal kicks or corners are awarded when it goes over the goal line, depending on who touched it last.

How Scoring Works

A goal is scored when the entire ball crosses the goal line between the goalposts and under the crossbar, provided no infringement has occurred. The team with the higher number of goals at the end of the match wins. If both teams have the same number of goals, the match is a draw (tie). In some competitions, a draw is not allowed, and the game goes to extra time (two 15-minute periods) and then a penalty shootout to determine a winner.

Goals can be scored from open play, set pieces (free kicks, corners, penalties), or own goals (when a player accidentally scores against their own team). The offside rule, which is often misunderstood, prevents attacking players from hanging around the opponent’s goal waiting for a pass. A player is offside if they are nearer to the opponent’s goal line than both the ball and the second-last opponent when the ball is played to them, unless they are in their own half or level with the last two opponents.

Key Positions and Formations

Each team has a goalkeeper and ten outfield players. The outfield players are usually divided into defenders, midfielders, and forwards. The exact number of each depends on the formation chosen by the coach. Common formations include 4-4-2 (four defenders, four midfielders, two forwards), 4-3-3, and 3-5-2. The goalkeeper is the last line of defense and the only player allowed to handle the ball in the penalty area.

Defenders aim to stop the opposition from scoring, midfielders link defense and attack, and forwards focus on scoring goals. Players switch positions during a match, and modern football emphasizes fluid movement and pressing. The team captain is the on-field leader and communicates with the referee.

Fouls and Cards

Fouls are called when a player commits an unfair act, such as tripping, pushing, or handling the ball deliberately. The referee awards a free kick to the opposing team. If a foul occurs inside the penalty area, a penalty kick is awarded, giving the attacking team a direct shot at goal from the penalty spot, with only the goalkeeper to beat.

For serious or persistent fouls, the referee can show a yellow card (warning) or a red card (dismissal). A red card means the player is sent off and cannot be replaced, leaving their team with fewer players. Two yellow cards in one match result in a red card. Common yellow-card offenses include reckless tackles, delaying the restart, or dissent. Red cards are shown for serious foul play, violent conduct, or denying an obvious goal-scoring opportunity.

Common Misconceptions

Many new fans confuse the offside rule or think that any handball is a foul. In reality, the handball rule considers whether the arm is in an unnatural position and whether the player deliberately handled the ball. Accidental handball is not always a foul, especially if the arm is close to the body. Another misconception is that a player must be behind the ball to be onside; actually, it’s about the position relative to the second-last opponent. Also, a goal cannot be scored directly from a throw-in, and a player cannot be offside from a goal kick, corner, or throw-in.

How to Get Involved

To play football, you need a ball, a flat area, and some friends or a local team. You can join a recreational league, play five-a-side, or simply kick a ball around in a park. To watch, you can attend matches or follow leagues on TV or online. Understanding the rules makes watching more enjoyable. If you want to learn more, watch professional matches and listen to commentators, or read the official Laws of the Game.

Frequently Asked Questions

How long is a football match?

A standard match lasts 90 minutes, divided into two 45-minute halves with a 15-minute halftime break. The referee may add stoppage time at the end of each half for injuries, substitutions, or time-wasting. In knockout games that require a winner, extra time of 30 minutes (two 15-minute halves) is played, followed by a penalty shootout if still tied.

What is offside in football?

Offside is a rule that prevents attacking players from waiting near the opponent’s goal. A player is offside if they are nearer to the opponent’s goal line than both the ball and the second-last opponent when the ball is played to them, unless they are in their own half or level with the last two opponents. Being offside is not a foul in itself; it’s only penalized if the player becomes involved in active play.

How many players are on a football team?

Each team has 11 players on the field, including one goalkeeper. Teams are allowed to make a certain number of substitutions during a match (usually three to five, depending on the competition). If a player is sent off, the team must continue with fewer players; they cannot replace the dismissed player.

What is a penalty kick?

A penalty kick is a direct free kick taken from the penalty spot, 12 yards (about 11 meters) from the goal. It is awarded when a defending player commits a foul inside their own penalty area. Only the goalkeeper and the taker are involved; all other players must be outside the penalty area and at least 10 yards from the ball. The taker gets one shot at goal, and the goalkeeper tries to save it.

Can a goalkeeper score a goal?

Yes, a goalkeeper can score a goal, but it’s rare. They can score from a goal kick (though the ball must leave the penalty area first), a free kick, or a header during a corner. However, they rarely venture upfield because it leaves their goal unguarded. Some goalkeepers are known for scoring from long punts or free kicks.

What is VAR in football?

VAR stands for Video Assistant Referee. It is a system where a team of officials reviews video footage to help the referee make decisions on goals, penalties, red cards, and mistaken identity. The referee can consult a pitchside monitor or receive advice from the VAR team. VAR is used in many professional leagues and tournaments, but it is not part of the basic Laws of the Game for amateur play.

Sources: The IFAB Laws of the Game. Menus and buttons can differ slightly by version. Spotted something out of date? Tell us.