The Reds recalled Petty from Triple-A Louisville on Sunday.
Petty will provide the Reds with a fresh arm out of the bullpen heading into Sunday's series finale versus the Cubs. Though the Reds have a temporary opening in the rotation after Nick Lodolo (finger) was placed on the 15-day injured list in a corresponding move, Petty may not be in consideration to replace him after he recently transitioned to a bullpen role at Louisville. Petty turned in a 6.17 ERA and 1.54 WHIP over 10 starts at Triple-A before tossing a pair of scoreless innings in relief in his last two outings.