Reds optioned RHP Chase Petty to Triple-A Louisville.
Petty returns to the minors after allowing three runs — two earned — over 1 2/3 innings during an abbreviated start against the Nationals on Friday night. The 23-year-old holds a serviceable 4.83 ERA across 31 2/3 innings for the Reds this season. His departure clears a roster spot for recent waiver wire acquisition Ron Marinaccio to join the club’s active roster.