Adding Players to MLB Reserve List

Only players on an MLB Reserve List (40-man roster) can be placed on an MLB Active List (25-man roster).

A free-agent with prior MLB and/or minor league service who signs a Major League contract must be added to his club's MLB Reserve List (40-man roster) when he is added to an MLB Active List or when the contract is filed with the MLB Commissioner (whichever comes first). Contracts must be filed with the MLB Commissioner within 20 days of signing.

A club must add a player to its MLB Reserve List immediately if the player is acquired as the result of a waiver claim, or if a player on another club's 40-man roster is acquired in a trade, or if a player is selected in the Major League Phase of the Rule 5 Draft.

In addition, an MLB club generally has the option to add any player who is on the reserve list of one of its minor league affiliates to its MLB Reserve List (40-man roster) at any time. The exceptions are:

1. A minor league player eligible for selection in the Rule 5 Draft cannot be added to an MLB 40-man roster during the period of time beginning with the filing of MLB and minor league reserve lists on November 20th (or November 19th if November 20th falls on a Saturday, or November 18th if November 20th falls on a Sunday) up through the conclusion of the Rule 5 Draft.

2. A minor league player who was sent outright to the minors cannot be added back to his club's MLB 40-man roster until he has spent at least 10 days on outright assignment, unless the player is selected to be the "26th man" on a day where a doubleheader was scheduled at least 48 hours in advance, or is selected to replace a player on the 25-man roster who is placed on the Disabled List, Bereavement List, Paternity List, Restricted List, Military List, Disqualified List, or Ineligible List, or if the season (including post-season playoffs) of the minor league team to which the player is assigned is over, or if the player is traded.

3. A minor league player eligible for selection in the Rule 5 Draft who was sent outright to the minors anytime after the previous Rule 5 Draft cannot be added back to his club's MLB 40-man roster during the period of time beginning at 5 PM (Eastern) on the 5th day after the final game of the World Series up through the conclusion of the Rule 5 Draft.

4. An unsigned minor league player who is eligible to be a Rule 55 minor league free-agent (player was previously released in his career and/or player has spent all or part of at least seven separate seasons on a minor league active list or disabled list) cannot be unilaterally added (by selection) to his club's MLB 40-man roster any later than 5 PM (Eastern) on the 5th day after the final game of the World Series (or 5 PM Eastern on October 15th if the World Series is canceled).

5. A player on an MLB Reserve List (40-man roster) who is given his Outright Release during the period of time extending from September 1st through March 31st cannot be added back to the MLB 40-man roster of the club that released the player until May 15th, and a player on an MLB 40-man roster who is given his Outright Release during the period of time extending from April 1st through August 31st cannot be added back to the MLB Active List of the club that released the player for at least 30 days.

6. A player who has not previously signed an MLB or minor league contract can be "Signed for Future Service" (contract is for the following season) if the player signs a Major League contract after July 1st. A player who is "Signed for Future Service" by an MLB club must be placed on the club's MLB Reserve List (40-man roster), and cannot play in MLB or in the minor leagues until Opening Day of the following season. (Attendance at a post-season Instructional League and/or participation in Instructional League games do not count). A player on an MLB 40-man roster who is "Signed for Future Service" cannot be sent to the minors by Optional or Outright Assignment any earlier than 20 days prior to MLB Opening Day (same as a Draft-Excluded Player).

7. Beginning in 2012, players signed after being selected in the MLB Rule 4 Draft, players signed as Non-Drafted Free-Agents (NDFA) after being eligible for selection in the MLB Rule 4 Draft, and international players subject to the International Signing Bonus Pool rule, cannot be signed to a Major League contract.

Recent comments

Subscribe to Recent comments
The first 600 characters of the last 16 comments, click "View" to see rest of comment.
  • I believe Willson now has more CS than MIggy. The kid has an arm. Also, Russell is amazingly good on those plays at 2nd.

    billybucks 2 min 47 sec ago view
  • oh yeah...thanks joe/billy.

    poor outing, still got the win, go cubs.

    crunch 41 min 16 sec ago view
  • Although it felt like it, Jake didn't lose to them -- he got the W. (Assuming you are referring to Monday's game)

    billybucks 2 hours 21 min ago view
  • Arrieta didn't lose to the Reds. He got the win -- he just didn't pitch like we expect him to.

    JoePepitone 2 hours 22 min ago view
  • almora's 1st HR!

    crunch 2 hours 30 min ago view
  • it's not like this CIN team is lost-cause horrible, but aside from defense and power this is a truly horrible team.

    kinda crazy arrieta lost to them and yesterday's game had to go 15 innings for the cubs win.

    crunch 2 hours 46 min ago view
  • It looked like Hamilton got screened by Duvall and that Duvall just barely deflected the ball off of his glove--redirecting it slightly without taking away much of its momentum.

    At least it didn't turn into a Schwarber/Fowler situation. Hamilton and Duvall are both pretty important youngish players for the Reds.

    Charlie 2 hours 54 min ago view
  • he walked off the field on his own. aside from a concussion watch and some attention to his leg/knee that buckled a bit under him, the biggest thing hurt was probably his pride after the ball knocked off his skull.

    crunch 3 hours 12 min ago view
  • After last night, an inside-the-park HR seems kind of run-of-the-mill somehow.

    Sounds bad for Hamilton. Hope he's okay--listening on the radio.

    Brick 3 hours 29 min ago view
  • SHOW ME THE MONEY:  Jose Albertos has signed with Mega-Agent Scott Boras.

    Albertos has already received his signing bonus and won't see any additional significant money until he reaches the big leagues,  so this is a long-term investment for the Boras Corporation.  

    Arizona Phil 3 hours 36 min ago view
  • I am glad Joe is managing this team and not Old and Blue!

    Hagsag 5 hours 58 min ago view
  • Baez had Maddon's ass last night. I didn't hear the reason for taking Contreras out last night but whatever game management thingy it was, you don't take out your second hottest hitter. Or is he third? Anyway, you don't take him out. The guy can probably play anywhere in the field, anyway. Did anybody see that nice catch in left he made? I don't think he got a late start on that, just tracked it damn well for a catcher.

    Old and Blue 7 hours 53 min ago view
  • Per Fangraphs...

    Bryant took over NL lead in WAR after yesterday's effort. 3.9. Rizzo's at 2.8 and 8th in the league. Rizzo actually with better offensive numbers (161 wRC+ versus 146 for Bryant), but Bryant gets a good bump because of defense and position(s) played.

    Fowler with a 2.8 WAR as well (9th), Zobrist with a 2.7 (14th).

    M. Carpenter leads NL with 163 wRC+ just ahead of Rizzo who is 2nd.

    Rob G. 13 hours 55 min ago view
  • Amen

    jacos 15 hours 33 min ago view
  • @jonahkeri Joe Maddon living out Joe Maddon fanfic IRL tonight

    Rob G. 15 hours 54 min ago view
  • yes. I was at the Sean Marshall game in LF. Lou Piniella was managing. StL won 4-2, so I guess it didn't help but it was zany. Soriano/Reed Johnson and Marshall were the LF's.

    http://m.mlb.com/news/article/5854550/

    7-12-09

    http://scores.espn.go.com/mlb/boxscore?id=290712316

    On a 6 degrees of separation note: Cubs got Travis Wood in the trade that sent Sean Marshall to Cincy.

    Cubster 16 hours 4 min ago view