BALLER MOVE: Add Immediately
ANALYSIS: When Jason Motte went down with an injury back in March, the Cardinals' closer situation seemed up in the air. It was a toss-up between Mitchell Boggs, Edward Mujica, and Trevor Rosenthal to see who would step into the ninth inning role. Eventually, Mujica won the job, but even for some time after, many thought the closer role would eventually be handed to the young, flame-throwing Rosenthal. Mujica kept the job, but now that he's dealing with some arm trouble of his own, it looks like Rosenthal will finally get his shot to close out games. Rosenthal has been lights-out in a setup role this year, as evidenced by his 2.54 ERA and ridiculous 86 strikeouts in 60 innings pitched. It's unclear how long Mujica will be out for, but Rosenthal is now a must own player. Don't walk, run to your waiver wire and grab him if he's still available.