Stewart (hamstring) resumed baseball activities Tuesday, Bill Brink of the Pittsburgh Post-Gazette reports.

EDGE Analysis

Stewart has been sidelined since the end of May, but it seems like he's finally progressed in his rehab, meaning that a rehab assignment may come in the next week or so barring any extraneous circumstances. Until he's ready for full action again, Elias Diaz will act as the backup catcher behind Francisco Cervelli.