Hernandez (shoulder) was reinstated from the 10-day disabled list prior to Friday's game.
In a corresponding move, the club optioned Phil Gosselin to Triple-A Louisville. Hernandez wound up appearing in a pair of rehab outings with Louisville, and didn't experience any problems with the shoulder inflammation that has lingered since late March. Expect the 32-year-old to slide into a late-inning role in the Reds' bullpen.