Overview

The injured reserve list is a roster designation professional teams use to mark players who are sidelined by injury and expected to miss games for a measurable period. Placing a player on injured reserve generally frees a spot on the active roster while the player remains under contract. Exact terms, minimum time away, and roster or salary-cap consequences differ by league and collective bargaining agreements.

How it works

When a team places a player on injured reserve, that player is typically not eligible to play for the team for at least a minimum interval or until formally cleared. Teams often must follow procedures such as medical certification, official notifications, and sometimes roster moves like signing a replacement. In some cases, a player may be designated to return later in the same season; in others, the designation is season-ending.

Common types and procedural notes

  • Short-term or short‑term IR — used when the absence is expected to be brief and the league permits return after a set time.
  • Season‑ending IR — removes the player from consideration for the remainder of the season.
  • Long‑term or LTIR — in some leagues this carries salary‑cap relief or special accounting rules.
  • Injury settlements and waivers — teams and players may agree to settlements to release a player from IR under certain conditions.

Variations by league

Different sports use similar mechanisms with distinct names and rules. For example, the concept is commonly applied in hockey and football; see the specific rules used in each league for timing and cap effects. In baseball, the comparable mechanism has been known as the disabled list and is now commonly called the injured list. For league-specific procedures consult official sources: definition and uses, timing and eligibility, NHL rules, NFL rules, baseball injured list.

History and purpose

The injured reserve evolved to balance competitive integrity, roster flexibility, and player welfare. It allows clubs to manage short‑term injuries without carrying surplus inactive players, and it protects players' contracts while they recover. Over time, collective bargaining and salary‑cap systems have shaped how IR interacts with team finances and player rights.

Importance and notable effects

Placement on injured reserve affects team strategy, such as signing replacements or adjusting lineups, and can influence playoff eligibility and salary accounting. Fans and analysts track IR moves as indicators of a team's depth and long‑term planning. Because rules vary, teams and players rely on medical, legal, and front‑office staff to navigate IR placements and any potential returns during a season.