Diamondbacks Outright Peter Solomon

The Diamondbacks have sent right-hander Peter Solomon outright to the Triple-A Reno Aces, per his transactions tracker at MLB.com. That indicates he cleared waivers after being designated for assignment earlier this week.

Solomon, 26, was once an intriguing prospect in the Astros’ system, having been drafted by that club in the fourth round in 2017. However, he required Tommy John surgery in 2019 and then the minor leagues were canceled by the pandemic in 2020, leading to a significant gap in his development. He seemed to get back on track in 2021, posting a 4.70 ERA for Triple-A Sugar Land in the hitter-friendly Pacific Coast League. He also made his major league debut with a 1.29 ERA in six relief appearances.

In 2022, the Astros kept him in the minors and his results took a step back. His ERA ticked up to 5.20 and his peripherals went in the wrong direction at Triple-A as well. His 26.3% strikeout rate from 2021 dropped to 20.5% and his walk rate went from 9.9% to 10.2%. He was put on waivers in September and was claimed by the Pirates. He made four appearances for their Triple-A club as the season was winding down but was outrighted at season’s end.

He came to the Diamondbacks this winter via the minor league phase of the Rule 5 draft. He was selected to the big league roster in early April but was shelled for a 12.15 ERA in five long relief outings. He got optioned back to Triple-A Reno but has posted a 9.69 ERA for that club. The club needed a roster spot when prospect Kristian Robinson was coming off the restricted list and Solomon was the casualty.

Since Solomon has a previous career outright, he has the right to reject this assignment and elect free agency, though it’s not publicly known if he has chosen to do so.