Of course, just a couple weeks ago there were 56 on my checklist, meaning the list is fluid. If you know of a player that I missed, let me know.
The list could be at 61 players...in 2008 Upper Deck put out some relic cards of Sean Marshall. However, they were special limited run cards that had buttons, laundry tags or MLB logo tags and they were numbered to only 4 or 5. I doubt I'll ever see any of those and I'm keeping them off the checklist.
As requested, here is a tile of all 60 players. They're in alphabetical order, and after the tile I've got a list of all the players.
Hee Seop Choi
Gary Matthews, Jr.