Red Sox: Andrew Bailey, Koji Uehara, Junichi Tazawa, Alfredo Aceves, Clayton Mortensen
One area where the Red Sox upgraded in the offseason was beefing up the bullpen. Bailey drops down to set-up Hanrahan, while the veteran Uehara and the surprising Tazawa add some muscle to the mix in the middle innings. If Daniel Bard ever returns to his 2010-11 form, this could be the best bullpen in baseball. Fireballer Rubby De La Rosa, southpaw Franklin Morales, and knuckleballer Steven Wright will provide insurance if any of the starters go down.
Yankees: David Robinson, Boone Logan, Joba Chamberlain, Cody Eppley, Shawn Kelley, Michael Pineda, David Phelps
24-year-old Michael Pineda, coming back from shoulder issues, has the big upside of this group if he can find his way back into the majors and rotation at some point. The injury-prone Joba Chamberlain is in search of a steady role. The big boost comes from Rivera’s return, if he is indeed the Mariano Rivera of old.
The edge: Red Sox. They’re loaded … on paper.