I didn’t realize how complicate it was to determine who is and is not eligible to be on a playoff roster. Why am I talking about this today? Because today was the last day a team can trade for a player and have that player be eligible for their playoff roster. Going forward teams can still make waiver trades, but any player acquired would not be eligible for their playoff roster.
I was going to write a great post on the full subject of playoff roster eligibility, but Dave Cameron at fangraphs.com already did it so why reinvent the wheel. To read all about it click here.