A football substitution is a regulated player change, not simply a coach sending someone on. Competition rules determine how many substitutes can be used, while the Laws of the Game set the procedure for completing each change. Knowing the difference helps when reading live match updates, especially late in a close game.
What is a football substitution?
A substitution replaces one player with an eligible substitute. In the standard procedure, the referee is informed, play is stopped, the outgoing player leaves, and the incoming player enters after the referee’s signal. The replacement becomes a player only when they enter the field of play.
That distinction explains why a live timeline can briefly show a substitution request before the change is completed. A player walking to the touchline is not necessarily the same as a completed substitution.
How many substitutions can a team make?
The exact limit is set by the competition. In many senior top-division and international competitions, the rules permit up to five substitutes, but that is not a universal number for every league, cup, youth match or friendly. Always check the competition regulations rather than assuming that every match follows the same limit.
The IFAB’s Law 3 separates the number of substitute players from the number of opportunities a team has to make changes. This is why commentators may refer to “windows” as well as “subs”.
Substitution windows: players versus opportunities
In competitions that use the common five-substitute model, a team normally has three substitution opportunities during play and may also make changes at half-time. Multiple players can be changed at the same stoppage; that normally counts as one opportunity rather than several.
Example: if a team changes two players together in the 65th minute, it may have used two substitute players but only one substitution opportunity. This is useful context when a live match page lists several players entering at exactly the same minute.
What changes in extra time?
Extra time does not automatically mean every team receives the same additional allowance. Under Law 3, unused substitutes and unused opportunities can carry into extra time. A competition may also allow an additional substitute and an additional opportunity in extra time, but its regulations must state that. Changes between normal time and extra time, or at the interval of extra time, are handled differently from ordinary in-play windows.
For the wider clock context, see stoppage time versus extra time explained. Added time and extra time are different concepts, even though both can affect when a manager chooses to change players.
When is a substitution complete?
For a normal substitution, the incoming player enters during a stoppage, at the halfway line, after the player being replaced has left, and after receiving the referee’s signal. The outgoing player generally leaves at the nearest boundary point unless the referee gives a different instruction for a valid reason such as safety, security or injury.
A substitution board is therefore a useful visual cue, but the referee’s procedure still matters. If an outgoing player delays leaving, the replacement may not be able to enter immediately. Live data providers can also record the event a few seconds after the visible board appears.
How to read substitution updates in a live match
- Check the minute. Note whether the change happened during normal time, added time, half-time or extra time.
- Identify both players. A timeline should indicate the player coming on and the player going off.
- Look for grouped changes. Two or three changes at the same minute may be one tactical window.
- Read the score and match state. A defensive change at 1–0 can have a different purpose from a change while trailing.
- Do not infer certainty. A substitution can alter shape or energy, but it does not guarantee the next goal or the final result.
You can use the 707Livescore match area alongside the score, minute and event timeline to put a listed change in context. For a broader pre-match-to-post-match route, the Football Match Centre guide explains how live information fits into a match journey.
Why managers make substitutions
Managers may change a player because of fatigue, an injury concern, a tactical adjustment, a disciplinary risk, a set-piece role or the demands of a crowded schedule. One change can also affect several positions. For example, a winger may leave while a full-back enters, allowing another player to move higher up the pitch.
That is why the names alone do not prove the exact tactical reason. Treat the timeline as a record of what changed, then use the score, cards, match minute and the available event data to understand the situation around it.
Common mistakes to avoid
- Assuming every competition allows five substitutions.
- Confusing the number of players changed with the number of substitution opportunities.
- Assuming a board display means the replacement is already on the field.
- Forgetting that half-time and extra-time changes can be treated differently.
- Treating one late substitution as a guaranteed sign of the final score.
Football substitutions FAQ
Can a team make more than one substitution at once?
Yes. Multiple players can be changed during the same stoppage. In competitions using substitution windows, those grouped changes generally count as one opportunity.
Do substitutions happen only when the ball is out of play?
For the normal procedure, the substitute enters during a stoppage in play after the referee’s signal and after the replaced player has left.
Do substitutions always increase added time?
Time lost for substitutions can be considered when the referee makes allowance for time lost. The displayed added time is a minimum, not a promise of an exact final whistle minute.
Where can I follow live match events?
Use the 707Livescore match area to review the current score and the available event information for a match.
Rules and competition formats can change. This article is an educational overview based on IFAB Law 3, checked on September 7, 2026; the relevant competition regulations remain the deciding source for a specific fixture.