Naughton (elbow) announced his retirement from professional baseball Monday, Jeff Jones of the Belleville News-Democrat reports.
Naughton suffered the third left elbow UCL injury of his career back in April and underwent surgery in June. The 29-year-old has decided against rehabbing with an intent to pitch again and instead will close the book on his baseball career. Naughton posted a 4.98 ERA and 1.51 WHIP over parts of three major-league seasons.