The Arizona Diamondbacks activated shortstop Stephen Drew for Tuesday night's game against the Cincinnati Reds and placed outfielder Conor Jackson (illness) on the disabled list.
In addition, the D-Backs called up relief pitcher Clay Zavada from Class AA Mobile and sent down pitcher Bobby Korecky, who was rocked for six earned runs in two innings of work Monday.
Drew (hamstring) has been on the DL since late April. Jackson, hitting just .182, hasn't felt well for a couple of weeks. General manager Josh Byrnes was expected to address Jackson's health before the game against the Reds.
Wednesday could bring two more changes to the active roster. Right-hander Bryan Augenstein, 5-0 with a 0.78 ERA at Mobile, will be called up to pitch against the Reds, and the Diamondbacks also could promote outfielder Gerardo Parra, considered the top-hitting prospect in the organization.
Parra is hitting .361 at Mobile with three homers and 12 RBIs.