Solomon had Tommy John elbow surgery Oct. 30, Reds GM Nick Krall revealed Monday, Mark Sheldon of MLB.com reports.
The Reds added Solomon to the 40-man roster over the offseason. Should they ever find a shortstop to sign or trade for, they could easily move him off the 40-man to make room, either by designating him for assignment or by putting him on the 60-day IL, depending on when that hypothetical move occurs.