Cricket Substitute Fielder — Rules and Restrictions Explained

What Is a Substitute Fielder?

A substitute fielder in cricket is a player who takes the field on behalf of a member of the fielding side who is temporarily absent — usually due to injury or illness suffered during the match. A substitute can field anywhere in the field and attempts to catch, stop or return the ball just as any regular fielder would. The critical limitation is that a substitute fielder cannot bowl, bat or keep wicket.

Key Rules

Under Law 24 of the Laws of Cricket, a substitute may not take the field without the permission of the umpire, and the opposing captain must be informed. The substituted player may not return to their fielding role while the substitute is on the field — they must wait until the substitute leaves. A substitute can field anywhere, but they cannot bowl, bat or keep wicket under any circumstances. If a wicket falls while a substitute is keeping wicket (in the rare case where the regular keeper is injured mid-over), the catch is credited to the substitute but does not count as a dismissal by the keeper for statistical purposes.

Concussion Substitutes

Since 2019, cricket has also allowed a 'concussion substitute' — a full replacement for a player who has suffered a confirmed concussion during the match. Unlike a standard substitute, a concussion substitute can bat, bowl, and keep wicket in place of the concussed player. The replacement must be a 'like-for-like' player as determined by the match referee, meaning a batsman replaces a batsman and a bowler replaces a bowler. This rule was introduced following growing awareness of concussion risks in sport globally.

Impact Substitutes

Some cricket leagues — notably the IPL — have trialled 'Impact Player' rules that extend the substitution concept to allow tactical swaps during matches. Under the IPL's Impact Player rule, each side can introduce one substitute player from a designated bench at any point in the first innings, giving teams significant tactical flexibility. This is distinct from the traditional substitute fielder rule under the Laws of Cricket and applies only within the specific competition regulations that allow it.