This is dubbed the official "player list," because there are a few tweaks to be made, which usually involves players being placed on the disabled list in the early going, similar to what happened to Cory Arbiso toward the beginning of 2010.

Pitchers
Cory Arbiso
Wilkins Arias
Manny Banuelos
Dellin Betances
Steve Garrison
Shaeffer Hall
Fernando Hernandez
Craig Heyer
Kei Igawa
Tim Norton
Naoya Okamoto
Graham Stoneburner
Pat Venditte

Catchers
Austin Romine
Myron Leslie

Infielders
Corban Joseph
Addison Maruszak
Yadil Mujica
Jose Pirela

Outfielders
Cody Johnson
Austin Krum
Ray Kruml
Melky Mesa
Jack Rye
Damon Sublett

That gives you 25 players to start the season, which means one of them is going to have to become inactive before opening day. I would be surprised if it's not a pitcher, given that there are 13 of them on the list. One of the six outfielders would also make sense.