The club's 40-man roster is currently at 38 players and comprised of the following:
Right-handed pitchers (15): Chase Anderson, Charles Brewer, Trevor Cahill, Josh Collmenter, Randall Delgado, Will Harris, David Hernandez, Marcos Mateo, Brandon McCarthy, J.J. Putz, Addison Reed, Alex Sanabia, Bo Schultz, Zeke Spruill and Brad Ziegler;
Left-handed pitchers (6): Patrick Corbin, Eury De La Rosa, Wade Miley, Joe Paterson, Matt Reynolds and Joe Thatcher;
Catchers (2): Tuffy Gosewisch and Miguel Montero;
Infielders (7): Eric Chavez, Paul Goldschmidt, Didi Gregorius, Aaron Hill, Chris Owings, Cliff Pennington and Martin Prado;
Outfielders (8): Tony Campana, Ender Inciarte, Alfredo Marte, Gerardo Parra, A.J. Pollock, Cody Ross, Mark Trumbo and Matt Tuiasosopo.
The club has 27 non-roster invitees comprised of 13 pitchers, 4 catchers, 7 infielders and 3 outfielders:
Right-handed pitchers (11): Jake Barrett, Mike Bolsinger, Archie Bradley, R.J. Hively, Daniel Hudson, Willy Paredes, Adam Russell, A.J. Schugel, Seth Simmons, Matt Stites and Jess Todd.
Left-handed pitchers (2): Andrew Chafin; Ryan Rowland-Smith;
Catchers (4): Henry Blanco, Blake Lalli, Bobby Wilson and Steven Rodriguez;
Infielders (7): Nick Ahmed, Nick Evans, Michael Freeman, Mike Jacobs, Sean Jamieson, Jake Lamb and Andy Marte;
Outfielders (3): Danny Dorn, Justin Greene and Evan Marzilli.