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Rules

Offside Rule Explained

Complete guide to understanding the offside rule in football and FIFA World Cup matches.

Quick Answer

A player is offside if they are in the opponent's half and closer to the goal line than both the ball and the second-last defender when the ball is played. Offside is not called from throw-ins, goal kicks, or corner kicks.

GK
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Offside Position
Defenders
Offside Player
Offside Line
Offside position: Attacker is closer to goal line than the second-last defender
The offside rule is one of the most important and often misunderstood rules in football.

What is Offside?

A player is in an offside position if:
• They are in the opponent's half of the field
• They are closer to the opponent's goal line than both the ball AND the second-last opponent

When is Offside Called?

Being in an offside position is not an offense. It only becomes an offense when:
• A teammate plays or touches the ball
• AND the offside player becomes involved in active play by: - Interfering with play (touching the ball) - Interfering with an opponent - Gaining an advantage from being in that position

Not Offside

You cannot be offside:
• In your own half
• If level with the second-last opponent
• If level with the last two opponents
• Directly from a goal kick, corner kick, or throw-in

Semi-Automated Offside Technology

The 2022 World Cup introduced semi-automated offside technology using:
• 12 tracking cameras under the stadium roof
• Ball sensor technology
• AI to generate 3D animations

Frequently Asked Questions