Per Over the Monster
At this point, with Thornburg still throwing off flat ground and having no basis on which to base expectations for the now-29-year-old, the safe course of action is to expect little from Thornburg. The righty has the talent to be a legitimate back-of-the-bullpen arm, and he’s proven that at the major-league level. We just don’t know if he’ll get that stuff back. The Red Sox are going to work with him to get it back, of course, and they’d be wise to take their time and value the quality of his stuff when he returns over the percentage of the season in which he can pitch. If Thornburg does get his stuff back for 2018, though, it is the biggest potential boost we could see for this Red Sox roster.