American League
BOSTON RED SOX—Added RHP Byung-Hyun Kim to the roster. Designated LHP Bruce Chen for assignment.
OAKLAND ATHLETICS—Fired Thad Bosley, hitting coach. Named Dave Hudgens interim hitting coach.
SEATTLE MARINERS—Recalled C Pat Borders from Tacoma of the PCL.
National League
ARIZONA DIAMONDBACKS—Designated 3B Matt Williams for assignment.
HOUSTON ASTROS—Activated RHP Roy Oswalt from the 15-day disabled list. Optioned RHP Brandon Puffer to New Orleans of the PCL.
LOS ANGELES DODGERS—Placed OF Daryle Ward on the 15-day disabled list, retroactive to May 28.
* NEW YORK METS—Placed LHP Mike Stanton and Pedro Astacio on the 15-day disabled list, Stanton retroactive to May 22. Recalled LHP Mike Bacsik and RHP Jeremy Griffiths from Norfolk of the IL.