Post-Season Roster Eligibility

A club's Active List (25-man roster) must be submitted to the MLB Commissioner prior to the start of each post-season series (LDS, LCS, and World Series). 

1. All players on a club's MLB Reserve List (40-man roster) prior to midnight (Eastern) on August 31st are eligible to be included on a post-season Active List (25-man roster).

2. A player on an MLB club's Disabled List (7-day, 15-day, or 60-day) or Restricted List (Prohibited Substance Suspension or extended Bereavement Leave only) is eligible to be included on a post-season Active List only after spending the minimum number of days required to be served by a player on that list.

3. Any player on the Disqualified List, Ineligible List, or Restricted List (for reasons other than extended Bereavement Leave or a Prohibited Substance Suspension) as of midnight August 31st is ineligible to be included on his club's post-season Active List.  

4. A post-season eligible player who is placed on an MLB Disabled List, Bereavement List, Paternity Leave List, or Restricted List (Prohibited Substance Suspension or extended Bereavement Leave only) prior to the start of a post-season series can (with the approval of the MLB Commissioner) be replaced on his club's LDS, LCS, or World Series Active List by a player who was on a Reserve List or Inactive List of a minor league affiliate from that organization prior to midnight August 31st. The minor league player must be added to his club's MLB Reserve List (40-man roster) before he can be added to the club's Active Roster.   

5. A player on a post-season Active List (25-man roster) who is injured or leaves his club on Bereavement Leave or Paternity Leave during a post-season series can (with the approval of the MLB Commissioner) be replaced on his club's Active List prior to the conclusion of that series by another eligible player, or by a player who was on a Reserve List or Inactive List of a minor league affiliate from that organization prior to midnight August 31st. The minor league player must be added to his club's MLB Reserve List (40-man roster) before he can be added to the club's Active Roster. Also, a a pitcher must replace a pitcher and a position player must replace a position player. 

6. If an injured pitcher or position player is replaced during a post-season series, the injured pitcher or position player is ineligible to be reinstated to his club's Active List (25-man roster) for the balance of that series and the next series (LCS or World Series).