MLB roster rules

Two 2019 MLB Rules Changes of Note

7/5 RE-POST: I posted this about three months ago, but here it is again since we are within a month of the 2019 MLB trade deadline... 

4/9 ORIGINAL POST 


There were a couple of changes of note made to MLB Rules in 2019 (they were officially approved this week), one pertaining to Trade Assignment Waivers and the MLB Trade Deadline, and the other with regard to Outright Assignment Waiver claims. 

One change was reported (with much fanfare but without much detail) in the media, but the other one was not reported at all.

So here they both are (in somewhat greater detail).  

Why Is a Player Designated for Assignment, and then Optioned to the Minors?

There seems to be some confusion (not here, but elsewhere) about why a player would be Designated for Assignment (DFA), and then subsequently be optioned to the minors.