Martin Maldonado has regressed at the plate in 2013, slashing .184/.253/.303 over 83 plate appearances.
Antonio Bastardo has a 2.35 ERA through 19 appearances despite a mediocre 1.43 WHIP.
Over 19 relief appearances, Charlie Furbush owns a 4.42 ERA in 18 1/3 innings.
Tyler Clippard hasn't allowed a run in May.
Joaquin Arias has been one of baseball's worst hitters, slashing .205/.262/.205 through 43 plate appearances.
Jason Frasor has tallied a 3.65 ERA through 17 appearances in his first season for the Rangers.
Jeremy Horst has not carried over his success from 2012, posting a 5.09 ERA and 1.58 WHIP over 17 2/3 innings.
Adam Ottavino boasts a 2.01 ERA over 22 1/3 relief innings for the Rockies.