Here is the 2012 Red Sox Opening Day roster (12 position players, 13 pitchers):
Pitchers: Jon Lester, Josh Beckett, Clay Buchholz, Felix Doubront, Daniel Bard, Alfredo Aceves (who was named the closer by Bobby Valentine), Mark Melancon, Matt Albers, Franklin Morales, Michael Bowden, Vicente Padilla, Justin Thomas, Scott Atchison.
Position Players: David Ortiz, Adrian Gonzalez, Dustin Pedroia, Mike Aviles, Kevin Youkilis, Nick Punto, Cody Ross, Jacoby Ellsbury, Ryan Sweeney, Darnell McDonald, Jarrod Saltalamacchia, Kelly Shoppach.
15-Day DL: Carl Crawford, Rich Hill, Daisuke Matsuzaka, Andrew Miller.
60-Day DL: Andrew Bailey, Chris Carpenter, Ryan Kalish.