BALTIMORE ORIOLES Purchased the contract of LHP Radhames Dykhoff from Bowie (AA); sent RHP Bobby Munoz outright to Rochester. [6/5] Activated RHP Mike Mussina from the DL; placed RHP Terry Mathews on the 15-day DL, retroactive to 6/2 (shoulder stiffness); placed OF Jeffrey Hammonds on the 15-day DL, retroactive to 6/3 (back spasms); purchased the…