Law 3·cards
Entering & Leaving the Field Without Permission
Players must have the referee's permission to enter or leave the field of play during a match. Doing so without permission is a cautionable offence.
The full rule
A player cannot enter or leave the field during play without the referee's permission. This applies to players returning from treatment for injury, players adjusting equipment, and substitutes entering. A player who deliberately leaves the field and re-enters to gain an advantage — such as running behind the goal line to appear onside — can be cautioned and their position for offside purposes is considered to be on the boundary line. If a player leaves the field and re-enters without permission and gains an advantage, they must be cautioned when the ball is next out of play.
Key points
- ✓Players must have referee permission to enter or leave the field
- ✓Deliberately leaving to gain an advantage is cautionable
- ✓Player who leaves is considered on the boundary line for offside purposes
- ✓Substitutes must wait for the replaced player to leave before entering
- ✓Returning from injury treatment requires referee permission
- ✓Player who enters without permission and affects play is cautioned