Umpiring Science
Lesson 16 of 21

Concussion Substitute Protocol

4 min read•3/19 sections

Player welfare first.

Technical Breakdown

19-section schema

Definition

A like-for-like replacement (ICC rule from 2019) when a player suffers a concussion during play, following independent medical assessment.

Tactical Use

Cannot be used as a tactical sub; the replacement must match the role of the injured player.

Common Mistakes & Drills

Disputes resolved by match referee; standardised HIA tool used pitchside.