Hart (hip) was transferred to the 45-day injured list Tuesday, Chris Cotillo of The Springfield Republican reports.
The 27-year-old landed on the injured list with a left hip impingement in early September, and he'll now be sidelined for the rest of the season. Hart finishes his first season in the majors having allowed 19 runs on 24 hits with a 13:10 K:BB over 11 innings.