Closer Rating System: Elite--Players with the strongest hold on their role in bullpen; Solid--Players that could lose their job/team's with solid backup in place; Shaky--Players that could lose their job at any moment; Committee--Players that are sharing the role with one or more teammates. American LeagueBaltimore Orioles(CL) Jim Johnson (R) Solid(SU) Pedro Strop (R) (MR) Luis Ayala (R) Boston Red Sox (CL) Joel Hanrahan (R) Solid(SU) Andrew Bailey (R) (MR) Koji Uehara (R)Chicago White Sox(CL) Addison Reed (R) Solid(SU) Matt Thornton (L) (MR) Jesse Crain (R) Cleveland Indians (CL) Chris Perez (R) Solid(SU) Vinnie Pestano (R) (MR) Bryan Shaw (R)Detroit Tigers(CL) Joaquin Benoit (R) Committee(CL) Phil Coke (L) Committee(CL) Octavio Dotel (R) CommitteeHouston Astros (CL)–Jose Veras (R) Shaky(SU)–Josh Fields (R) (MR) Rhiner Cruz (R) Kansas City Royals (CL) Greg Holland (R) Solid(SU) Aaron Crow (R) (MR) Kelvin Herrera (R)Los Angeles Angels(CL)  Ernesto Frieri (R) Shaky(SU) Sean Burnett (L) (MR) Scott Downs (L) Injured:  Ryan Madson (Elbow)Minnesota Twins(CL) Glen Perkins (L) Solid(SU) Jared Burton (R) (MR) Casey Fien (R)New York Yankees(CL) Mariano Rivera (R) Elite(SU) David Robertson (R) (MR) Boone Logan (R)Oakland Athletics(CL) Grant Balfour (R) Shaky(SU) Ryan Cook(R) (MR) Sean Doolittle (L)Seattle Mariners(CL) Tom Wilhelmsen (R) Solid(SU) Stephen Pryor (R) (MR) Charlie Furbush (L)Tampa Bay Rays(CL) Fernando Rodney (R) Elite(SU) Jake McGee (L) (MR) Joel Peralta (R)Texas Rangers(CL) Joe Nathan (R) Elite(SU) Jason Frasor (R): Pitched a scoreless seventh inning needing just nine pitched to retire the side in order. Frasor pitched well for the Blue Jays last season, but has little to no fantasy value outside of holds leagues in 2013. (03/31/13)(MR) Tanner Scheppers (R) Injured– Joakim Soria (Elbow)Toronto Blue Jays(CL) Casey Janssen (R) Shaky(SU) Sergio Santos (R) (MR) Steve Delabar (R)National LeagueArizona Diamondbacks(CL) J.J. Putz (R) Solid(SU) David Hernandez (R) (MR) Heath Bell (R)Atlanta Braves(CL) Craig Kimbrel (R) Elite(SU) Jordan Walden (R) (MR) Eric O’Flaherty (R) Injured– Jonny Venters (Elbow)Chicago Cubs(CL) Carlos Marmol (R) Shaky(SU) Kyuji Fujikawa (R) (MR) James Russell (L)Cincinnati Reds(CL) Aroldis Chapman (L) Elite(SU) Jonathan Broxton (R) (MR) Sean Marshall (L)Colorado Rockies(CL) Rafael Betancourt (R) Solid (SU) Rex Brothers (L) (MR) Wilton Lopez (R)Los Angeles Dodgers(CL) Brandon League (R) Shaky(SU) Kenley Jansen (R) (MR) Ronald Belisario (R)Miami Marlins(CL) Steve Cishek (R) Solid(SU) Jon Rauch (R) (MR) Mike Dunn (L)Milwaukee Brewers(CL) John Axford (R) Solid(SU) Jim Henderson (R) (MR) Michael Gonzalez (L)New York Mets(CL) Bobby Parnell (R) Shaky(SU) Brandon Lyon (R) (MR) Josh Edgin (L) Injured– Frank Francisco (Elbow)Philadelphia Phillies(CL) Jonathan Papelbon (R) Elite(SU) Mike Adams (R) (MR) Antonio Bastardo (L)Pittsburgh Pirates(CL) Jason Grilli (R) Shaky(SU) Mark Melancon (R) (MR) Jared Hughes (R)San Diego Padres(CL) Huston Street (R) Solid(SU) Luke Gregerson (R) (MR) Dale Thayer (R)San Francisco Giants(CL) Sergio Romo (R) Solid(SU) Javier Lopez (L) (MR) Santiago Casilla (R)St. Louis Cardinals(CL) Mitchell Boggs (R) Solid(SU) Edward Mujica (R) (MR) Fernando Salas (R) Injured– Jason Motte (Elbow)Washington Nationals(CL) Rafael Soriano (R) Elite(SU) Drew Storen (R) (MR) Tyler Clippard (R) Get all your latest up-to-date daily bullpen news by following @mlbdailybullpen.Matthew Beck is a Fantasy Sports Columnist for Rotoinfo.com. If you have any questions or comments feel free to e-mail him at matthewbeck@rotoinfo.com. Also follow him on Twitter @MatthewRBeck for up-to-date Q&A and fantasy information.And, to make setting your Fantasy Bassetball lineup easy, be sure to