The Cincinnati Reds have optioned right-handed pitcher Chase Petty back to Triple-A Louisville after he made a spot start for the team in last night’s loss to the Washington Nationals. The Reds are replacing him on the roster with Ron Marinaccio.
Petty is heading back to the minor leagues less than 24 hours after stepping in to help the club out when they needed someone to start the game when Hunter Greene went down with an injury earlier in the week and left Cincinnati without a starter. He allowed three runs – two of which were earned – in 1.2 innings before the rest of the game was turned over to the bullpen. The Reds would go on to lose 5-3.
Ron Marinaccio is joining the Cincinnati Reds bullpen after being claimed on waivers two days ago. He’s spent the 2026 season between the San Diego Padres and the Pittsburgh Pirates. Pittsburgh traded for him on July 23rd but then waived him two weeks later. That’s where the Reds stepped in and put in and won the waiver claim.
Marinaccio has been in the majors in parts of each of the last five seasons. He’s pitched for the New York Yankees, as well as the Padres and Pirates. As we noted when he was claimed on waivers – he had a 3.02 ERA for his career in 108 games before the 2026 season. This year that ERA jumped up to 4.79 with San Diego and 6.75 in his limited time with Pittsburgh.
There could be a lot more going into what led to the ERA jumping up nearly two full runs over his career average, but one thing stood out when you took a deeper look at things. He began to throw his cutter a lot more and his fastball a lot less in 2026 than he has in the past. Keep an eye on how his pitch usage compares with the Reds to his other two teams as the rest of the season plays out.
You can see the career stats for Ron Marinaccio here.