O'Sullivan was outrighted to Triple-A Pawtucket on Wednesday, Pete Abraham of The Boston Globe reports.
After being DFA'd on Sunday and subsequently clearing waivers, O'Sullivan was outrighted to Boston's Triple-A affiliate Wednesday. O'Sullivan was unable to get into a rhythm on the mound in his two starts with Boston this season, giving up nine earned runs across 10.1 combined innings. He'll provide organizational depth as either a starter or reliever while at Pawtucket, but he carries little fantasy upside at this point.