As per the Diamondbacks:
The Opening Day roster includes 12 pitchers, seven
infielders, four outfielders and two catchers.
Pitchers (12): Craig Breslow, Trevor Cahill, Josh
Collmenter, David Hernandez, Daniel Hudson, Ian Kennedy,
Wade Miley, Joe Paterson, J.J. Putz, Joe Saunders, Bryan
Shaw and Brad Ziegler.
Infielders (7): Willie Bloomquist, Geoff Blum, Paul
Goldschmidt, Aaron Hill, John McDonald, Lyle Overbay and
Outfielders (4): Jason Kubel, Gerardo Parra, Justin
Upton and Chris Young.
Catchers (2): Henry Blanco and Miguel Montero.
Infielder Stephen Drew and right-handed pitcher Takashi
Saito will start the season on the 15-day disabled list.