COMMISSIONER'S OFFICE-Suspended Cleveland minor league RHP Juan Nivar 50 games after testing positive for metabolites of a performance-enhancing substance in violation of the Minor League Drug Prevention and Treatment Program.
CHICAGO WHITE SOX-Reassigned OF Brandon Short from Charlotte (IL) to Winston-Salem (SAL).
CLEVELAND INDIANS-Claimed RHP Fabio Martinez off waivers from the L.A. Angels and optioned him to Carolina (Carolina).
DETROIT TIGERS-Optioned INF Danny Worth to Toledo (IL).
MINNESOTA TWINS-Recalled 2B Tsuyoshi Nishioka from Rochester (IL).
SEATTLE MARINERS-Optioned RHP Erasmo Ramirez to Tacoma (PCL).
TAMPA BAY RAYS-Optioned INF Will Rhymes to Durham (IL).
CHICAGO CUBS-Placed RHP Matt Garza to the 15-day DL.
HOUSTON ASTROS-Agreed to terms with RHP Brian Sanches on a minor league contract.
MILWAUKEE BREWERS-Recalled SS Jean Segura from Huntsville (TL).
PHILADELPHIA PHILLIES-Agreed to terms with 1B Jake Opitz on a minor league contract. Reinstated LHP Raul Valdes from the 15-day DL. Optioned 1B Hector Luna to Lehigh Valley (IL).
PITTSBURGH PIRATES-Sent RHP Juan Cruz to Altoona (EL) for a rehab assignment.
ST. LOUIS CARDINALS-Agreed to terms with OF Raymond Kruml on a minor league contract.