Injured Lists

Prior to the 2019 season, the "Injured List" was known as the "Disabled List."  

There are four different types of MLB injured lists: the 7-day Injured List (for players suffering an acute concussion), the 10-day Injured List (for "position-players" only), the 15-day Injured List (for "pitchers" and for "two-way players" only), and the 60-day Injured List (AKA the "Emergency Injured List").
CoViD-19 EXCEPTION: There will be a special MLB "CoViD-19 Related Injured List" in 2020 for players who are diagnosed with CoViD-19 during the MLB regular season, as well as for players who exhibit symptoms and/or have been exposed to the virus, or who are in a CoViD-19 "high risk" group. A player can only bbe placedv on the CiViD-19 Related Injured List by consent of the CoViD-19 Joint Health & Safety Commitee. There is no minimum or maximum number of days a player must spend on this list, but a player may not be reinstated until he is symptom-free and tests negative for the virus twice where the tests are administered at least 24 hours apart. A player on the CoViD-19 Injured List does not count against his club's Reserve List, Active List, or Club Player Pool roster limits. Also, the 15 day Injured List (for pitchers) is suspended (there will be a 10-day Injured List for both pitchers and position players), and the minimum number of days a player must spend on the 60-day Injured List ("Emergency Injured List") will be reduced from 60 days to 45 days.   

There are two types of minor league injured lists: the 7-day Injured List and the 60-day Injured List.
CoViD-19 EXCEPTION: The 2020 minor league season has been canceled. 

Only players with a verified injury or illness may be placed on an injured list.

The MLB Commissioner (or the Commissioner's designate) must approve all MLB Injured List assignments.

A "Standard Form of Diagnosis" signed by the club physician must accompany a request to place a player on an MLB Injured List, and a "Standard Form of Diagnosis for Recertification" signed by the club physician must be filed with the MLB Commissioner every ten days for players on the MLB 10-day Injured List and after seven days for players on the MLB 7-day Injured List.
NOTE: A Standard Form of Recertification is NOT required once a player has been placed on or transferred to a club's MLB 60-day Injured List, and a Standard Form of Diagnosis is not required to place a minor league player on a minor league Injured List and a Standard Form of Recertification is not required once a minor league player has been placed on a minor league Injured List.

A "Return to Play" form signed by the club's physician must be submitted to the MLB Commissioner before a player can be reinstated from the MLB 7-day (acute concussion) Injured List.

There is no limit to the number of players who may be on a club's injured list(s) at any one time.

1. An ill or injured player who is placed on the MLB 7-day, 10-day, or 15-day Injured List or on the minor league 7-day Injured List does not count against his club's Active List, but he does count against his club's Reserve List.

2. A player cannot be placed on the MLB 7-day, 10-day, or 15-day Injured List after the conclusion of the MLB regular season and throughout the post-season, off-season, and Spring Training, and a minor league player can be placed on a minor league club's 7-day Injured List only during his minor league club's regular season.
EXCEPTION: With consent of the MLB Commissioner, a player on an MLB Active List (26-man roster) of a club that is active in the MLB post-season can be placed on the 7-day, 10-day, or 15 day Injured List during a post-season series.  

3. As long as the player did not appear in a game during the retroactive period (including "official" MLB Cactus League or Grapefruit League games or other MLB pre-season exhibition games), an MLB 10-day Injured List assignment can be backdated up to three days (including the three days prior to MLB Opening Day), a 15-day Injured List assignment can be backdated up to six days (including the six days prior to MLB Opening Day), and a 7-day (acute concussion) Injured List assignment can be backdated up to three days (including the four days prior to MLB Opening Day).

4. If a position-player on an MLB 7-day (acute concussion) Injured List is not reinstated after spending ten days on the list he is automatically transferred to his club's 10-day Injured List, and if a pitcher on an MLB 7-day (acute concussion) Injured List is not reinstated after spending at least 15 days on the list he is automatically transferred to his club's 15-day Injured List. 

5. During Spring Training and during the MLB regular season up through August 31st, an injured or ill player can be placed on or transferred to the MLB 60-day Injured List only if his club's reserve list is full, but if a player is placed on or transferred to the MLB 60-day Injured List after August 31st, the club's reserve list must be full - AND - the player must be replaced on his club's MLB Reserve List (40-man roster) by another player.
CoViD-19 EXCEPTION: A player can be placed onto or transferred to the MLB 60-day IL (45-day IL in 2020) up through August 31st even if his club's MLB Reserve List is not full  : 

6. A player on the 60-day Injured List does not count against his club's Reserve List ir Active List roster limit. 
CoViD-19 EXCEPTION: A player on the CoViD-19 Related Injured List does not count against his club's Reserve List, Active List roster, or Club Player Pool limits.   

7. A player can be transferred from the MLB 7-day, 10-day, or 15-day Injured List to the MLB 60-day Injured List (or minor league 7-day Injured List to minor league 60-day Injured List). However, a player cannot be moved back to the MLB 7-day, 10-day, or 15-day Injured List (and a minor league player cannot be moved back to the 7-day Injured List) once he is placed on or transferred to the 60-day Injured List.

8. A player cannot be placed on the MLB 60-day Injured List after the conclusion of the MLB regular season, and during the post-season and off-season, up until the start of Spring Training (beginning on the date that pitchers & catchers are scheduled to report). A minor league player can be placed on a minor league club's 60-day Injured List only during his minor league club's regular season.

9. For a player who is transferred from the MLB 7-day, 10-day, ot 15-day Injured List to the MLB 60-day Injured List (or from a minor league club's 7-day Injured List to the minor league club's 60-day Injured List), time spent on the MLB 7-day, 10-day, or 15-day Injured List (or minor league 7-day Injured List) during the MLB regular season (or during the minor league regular season) prior to being transferred counts toward the minimum 60 days a player must spend on the 60-day Injured List. However, time spent on a minor league 7-day Injured List or minor league 60-day Injured List does NOT count toward the minimum number of days a player must spend on an MLB Injured List if a player is recalled from an optional assignment or has his contract selected and is added to an MLB 40-man roster prior to being reinstated from a minor league injured list.

10. A player who is placed on the MLB 60-day Injured List during Spring Training must spend at least the first 60 days of the MLB regular season on the Injured List (the player cannot be reinstated any earlier than the 61st day of the MLB regular season).
CoViD-19 EXCEPTION: A player who was placed on a club's MLB 60-day Injured List during 2020 MLB Spring Training (prior to March 26th) may be reinstated anytime after June 26, 2020.    

11. A player who was placed on the an MLB 7-day, 10-day, or 15-day Injured List during the MLB regular season must be reinstated no later than the day after the conclusion of the club's MLB season (including the post-season for club's tyhat qualify for the post-season), a player on an MLB 60-day Injured List who is eligible to be an Article XX-B MLB free-agent must be reinstated from the Injured List no later than 9 AM (Eastern) on the day after the final game of the World Series (or no later than 9 AM Eastern on October 15th if the World Series is cancelled), and all other players on an MLB 60-day Injured List must be reinstated no later than 5 PM (Eastern) on the 5th day after the final game of the World Series (or no later than 5 PM Eastern on October 15th if the World Series is cancelled), even if the player did not spend at least 60 days on the 60-day IL.
CoViD-19 EXCEPTION:  A player on the MLB CoViD-19 Related Injured List who is eligible to be an Article XX-B MLB free-agent must be reinstated from the Injured List no later than 9 AM (Eastern) on the day after the final game of the World Series (or no later than 9 AM Eastern on October 15th if the World Series is cancelled), and all other players on an MLB CoViD-19 Injured List must be reinstated no later than 5 PM (Eastern) on the 5th day after the final game of the World Series (or no later than 5 PM Eastern on October 15th if the World Series is cancelled),

12. A player on a minor league club's Injured List must be reinstated no later than September 30th, even if the player was on the minor league club's 60-day Injured List and did not spend 60 days on the Injured List. 

A player on an injured list can be traded, even if the player is not eligible to be reinstated and/or healthy enough to play. 

If a player on an injured list is traded, the player can be transferred directly from his former club's 7-day, 10-day, 15-day, or 60-day Injured List to the corresponding Injured List of his new club. Time spent on a 7-day, 10-day, 15-day, or 60-day Injured List prior to the trade counts toward the minimum number of days required before the player is eligible to be reinstated.

If a player on an MLB 60-day Injured List or CoViD-19 Injured List is claimed off waivers after the conclusion of the MLB regular season but prior to the deadline for reinstating players from the 60-day or CoViD-19 injured lists, the player can be transferred directly to the 60-day Injured List or CoViD-19 Injured List of his new club.

A player accrues one day of MLB Service Time for each day of the MLB regular season spent on an MLB Injured List.

Minor League Rehabilitation Assignment

MLB: Per Article XIX-C of the CBA and with the player's consent, a player on the MLB 10-day,15-day, or 60-day Injured List may be assigned to a minor league club for rehabilitation purposes for up to 20 days (for "position players") and up to 30 days (for "pitchers" and for "two-way players"), and a player on an MLB 7-day Injured List (acute concussion) may be assigned to a minor league club for rehabilitation purposes up to five days (for "position players") and up to eight days (for "pitchers" and for "two-way players").

With approval of the MLB Commissioner, a player who has undergone elbow UCL reconstruction surgery (so-called "Tommy John surgery") may have his Minor League Rehabilitation Assignment renewed for up to 30 additional days (in the form of three ten-day renewals).

With approval of the MLB Commissioner, a player on an MLB Active List who has undergone elbow UCL reconstruction (so called "Tommy John surgery") can be temporarily assigned as a "pitcher" to a minor league club for rehabilitation purposes while remaining eligible to play in MLB games as a position-player.  

With approval of the MLB Commissioner, if a player incurs a new (different) injury or illness or suffers a recurrence of the previous injury or illness while on a Minor League Rehabilitation Assignment, the player must be recalled from his Rehab Assignment and remain inactive for at least five days (for "position players") or seven days (for "pitchers" and for "two-way players") before starting another Minor League Rehab Assignment. 

A player on an MLB Injured List who is assigned to a minor league club for rehabilitation purposes continues to accrue MLB service time, and does not count against the minor league club's Active Roster.

A player on an MLB Injured List cannot be assigned to a minor league club for rehabilitation purposes while the player is on Outright Assignment Waivers.  

There is no limit on the number of MLB players who can be on an Article XIX-C Minor League Rehabilitation assignment with the same minor league club at the same time.

MINOR LEAGUES: A player on the 7-day or 60-day Injured List  of a "full-season" minor league club (Lo-A, Hi-A, AA, or AAA) may be assigned to Extended Spring Training for rehabilitation purposes prior to the start of the minor league "short season" in June, and to a "short-season" minor league club for rehabilitation purposes for up to 20 days (maximum 30 days for pitchers) after the conclusion of Extended Spring Training. 

A player on an MLB Reserve List (40-man roster) who is placed on a minor league injured list after being optioned to the minors cannot be assigned to a "short-season" minor league club for rehabilitation purposes while the player is on Outright Assignment Waivers.  

With approval of the MLB Commissioner, a minor league player who has undergone elbow UCL reconstruction surgery (so-called "Tommy John Surgery") may have his Rehabilitation Assignment renewed for up to 30 additional days (in the form of three ten-day renewals).

With approval of the MLB Commissioner, if a minor league player incurs a new (different) injury or illness or suffers a recurrence of the previous injury or illness while on a Rehabilitation Assignment, the player must remain inactive for at least five days (for position players) or seven days (for pitchers) before starting another Rehab Assignment. 

A player on an Injured List of a short-season "A" league minor league club can be sent on a Rehabilitation Assignment to a short-season rookie league club.  

A player on an Injured List of a short-season rookie league club (AZL, GCL, and DSL) cannot be sent on a Rehabilitation Assignmment to another minor league club. 

A minor league player on a Rehabilitation Assignment with a "short season" minor league club does not count against the Reserve List or Active Roster of the club to which he is assigned. (There is no roster limit at Extended Spring Training).

A maximum of three minor league players may "rehab" with any one "short season" minor league club at the same time, but there is no limit on the number of minor league players who may "rehab" at Extended Spring Training.