Pirates spring training catchers: Who are these guys?

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This starts BD’s annual feature on the more obscure of the Pirates’ spring training invitees. Today is catchers. I think you’re all familiar with Francisco Cervelli and Elias Diaz, so I’ll cover the other catchers who’ll be in camp. I suspect there’ll still be players signed to minor league deals before spring training starts on February 12, but we can have a 300-comment thread on Dusty Brown when the Pirates sign him.

Jacob Stallings (no. 58): You’ve all heard of this guy, right? Stallings is a good defensive catcher whose bat has advanced to the point of being decent for a backup catcher. He’s out of options and stuck behind Cervelli and Diaz, with the Pirates…