FIFA’s Strict Concussion Protocol: A Practical Guide to the Temporary Substitution Rules
You’re on the sideline, your striker has just taken a knock to the head after a collision. He says he’s fine, but his balance wobbles as he stands. You know concussion can be serious, but pulling him off permanently could cost your team the match. That’s where FIFA’s new temporary substitution rule comes in—but many coaches and first responders are still unclear on the exact steps. This guide walks you through the protocol from the moment you suspect a head injury, through the substitution process, and all the way to the final clearance. By the end, you’ll have a clear checklist you can laminate and take to games.
From First Concern to Final Decision: The Complete Process
Step 1 – Recognize the Signs Immediately
FIFA’s protocol activates the moment there is any suspicion of concussion—not only after a confirmed diagnosis. Suspect if you see confusion, dizziness, loss of consciousness, or even a “glassy” look. Do not wait for the player to complain. As a coach or medical staff, you must stop the game (if you have the authority) or signal the referee immediately. The temporary substitution process begins at this point, not after a pitch-side assessment.
Step 2 – Signal for a Temporary Substitution
The referee has the final say, but you can request a concussion substitute. Under the current rules, each team is allowed up to two temporary concussion substitutions per match (depending on the competition). The player being assessed leaves the field and is replaced immediately. The temporary substitute wears a distinct bib or colour to identify them. Importantly, the substitution does not count toward your regular substitution quota—but it must be marked on the official match report as a concussion sub.
Step 3 – The Pitch‑Side Assessment
The suspected concussion must be evaluated in a designated quiet area, ideally by the team doctor or a qualified medical professional. FIFA recommends using the SCAT5 tool (Sports Concussion Assessment Tool) or a similar standardised checklist. The assessment lasts up to 10 minutes (some leagues allow slightly longer). During this time, the temporary substitute remains on the field. If the player is cleared—meaning no concussion is diagnosed—he can return to the match, and the temporary substitute leaves the field. If concussion is confirmed, the player is permanently withdrawn, and the team must use one of its regular substitution slots (or a permanent concussion sub, if permitted).
Step 4 – Decision: Return or Replace
Clear = return. The temporary substitute leaves, and the original player re‑enters. The referee must be informed, and play resumes with the same number of players. If unclear or symptoms persist, treat as positive: the player cannot return. In many competitions, a player who fails the assessment is not allowed to re‑enter even if symptoms later disappear—that is a safety rule.
Key Terms You Need to Know
| Term | What It Means |
|---|---|
| Temporary concussion substitution | A substitution that allows the suspected player to be assessed up to 10 minutes while a stand‑in plays. The stand‑in can be reversed if the player is cleared. |
| Permanent concussion substitution | When a player is definitively removed due to concussion. This counts as one of the team’s regular substitutions (or as an extra concussion sub in tournaments that allow it). |
| SCAT5 | The Sport Concussion Assessment Tool – 5th Edition, used for sideline evaluation. Includes symptom checklist, cognitive tests, and balance assessment. |
| CBI (Concussion Blood Indicator) | A biomarker test that can help confirm concussion; not yet universally available but used in some top leagues. |
| Return‑to‑play protocol | After a confirmed concussion, the player must follow a graduated return‑to‑play step (e.g., rest, light exercise, full training, medical clearance) before playing again. |
Common Mistakes Coaches and First Responders Make
Mistake 1 – Waiting Too Long to Initiate the Protocol
Some coaches hope the player will “shake it off” within a minute. Delaying can worsen the injury and violates the protocol’s intent. As soon as you see any possible sign, call for the temporary substitution. Even if it turns out to be a false alarm, you have not lost anything—the player can return.
Mistake 2 – Using the Temporary Substitution for Strategic Time‑Wasting
FIFA expressly warns against tactical abuse. The protocol is for genuine head injury suspicion only. If a referee or match official believes the substitution was used to gain an advantage (e.g., to disrupt the opponent’s momentum), the team may face sanctions. Always have a medical reason.
Mistake 3 – Not Informing the Referee Properly
The referee must be notified that the substitution is for concussion. If you simply make a normal substitution without declaring it, the temporary substitution rules do not apply, and you lose the chance to bring the player back. Always explicitly state “concussion substitute” to the fourth official or referee.
Mistake 4 – Returning the Player Without Full Clearance
Even if the player feels fine after a few minutes, do not allow him back unless the medical assessment is completed and documented. Many concussions have a delayed onset of symptoms. Skipping the assessment puts the player at risk of second‑impact syndrome.
Practical Scenarios: What to Do
Scenario A: Your defender collides with a goalkeeper. He gets up slowly, is slightly unsteady, but says he’s okay. Action: Immediately signal for a temporary sub. While he is assessed, your substitute enters. If after 8 minutes the defender passes the SCAT5, he returns. If he fails, he is permanently replaced.
Scenario B: A midfielder is knocked unconscious for a few seconds. Action: This is an automatic concussion. Do not wait for a temporary sub – you must make a permanent concussion substitution (or use a regular sub). The temporary sub protocol is optional for clearly concussed players; however, many competitions use the temporary sub for the assessment period even in obvious cases because the formal diagnosis still takes time.
Frequently Asked Questions
How long does a temporary concussion substitution last?
The assessment window is typically 10 minutes, though some leagues allow up to 15. The clock starts when the player leaves the field. The team must inform the referee whether the player returns or is permanently replaced before time runs out.
Can any team official request the concussion substitution?
Ideally the team doctor or physio should make the request. However, if no medical staff are available (e.g., in amateur matches), the coach or captain can initiate it. The final decision still rests with the referee.
What if a team has already used all its regular substitutions?
Temporary concussion substitutions do not count toward the regular substitution limit. However, if the player is permanently removed and no normal substitution slot remains, the team plays with one fewer player—unless the competition rules allow an additional permanent concussion sub. Always check your league’s specific regulations.
Is the temporary substitute allowed to score or assist?
Yes. The temporary substitute is a full participant on the field during his time. If the assessed player returns, the temporary substitute simply leaves and the original player resumes. All statistics from the temporary sub count normally.
Where can I check official match updates and results to see how the protocol is applied in real games?
You can follow live matches and final results on sports platforms that report concussion substitutions. For example, many fans use Kết quả bóng đá pages to track team changes and match events, which sometimes note concussion subs in the commentary. For lower leagues, such as the German second division, you can find specific details on kết quả bóng đá hạng 2 đức pages.
Your Match‑Day Action Checklist
- Before the match: Confirm with the referee the exact concussion substitution rules for your competition (number allowed, time limit, documentation).
- At the first suspicion: Stop play if possible, signal to the referee, and verbally request a “concussion temporary substitution.”
- During assessment: Have the SCAT5 or equivalent tool ready. Start the timer. Ensure the temporary substitute wears a distinguishing bib.
- Decision point: If cleared, the temporary sub leaves; the original player returns. If not cleared, the player is permanently withdrawn; use a regular sub slot or an additional concussion sub if allowed.
- After the match: Document the incident and assessment. For any confirmed concussion, begin the mandatory return‑to‑play protocol (typically a minimum of 7 days rest for professional levels).
Concussion management is not just about following rules—it’s about protecting your players’ long‑term health. FIFA’s temporary substitution system gives you a vital safety net without unfairly punishing your team. Master these steps, and you’ll be ready to act quickly and correctly when it matters most.