The Pirates have announced that they've signed outfielder Gorkys Hernandez and corner infielder Deibinson Romero to minor league deals. They also officially announced the signing of catcher Sebastian Valle, who we already knew about.
The Bucs sent Hernandez to Miami when they acquired Gaby Sanchez, so it seems appropriate that they're re-acquiring him on the same day they designated Sanchez for assignment. Unfortunately, Hernandez hasn't improved his all-defense, no-offense game since then, so he'll surely be ticketed for Indianapolis. In September, it's conceivable he could join the Bucs as a defensive specialist as rosters expand. He hasn't played in the big leagues since 2012, the year the Pirates traded him.
The 28-year-old Romero hit .265/.364/.406 for Triple-A Rochester in the Twins system last season. He's a perfectly good Triple-A player with a consistent performance record in the high minors, but I wouldn't expect to see him in the big leagues unless there's a series of injuries.