Diamondbacks selected RHP Marcos Mateo from the Cubs in the 2013 Rule 5 draft.
Mateo should have no issues sticking in the big leagues next year. He has previous MLB experience -- collecting a 5.04 ERA over 44 2/3 innings between 2010-'11 with the Cubs -- and a big arm. The 29-year-old missed all of 2012 and most of 2013 while recovering from Tommy John surgery. Mateo, an import from the Dominican Republic, deals a high-90s fastball and a high-octane slider that sits in the upper-80s.