Turnbull has made the Tigers' Opening Day roster, Anthony Fenech of the Detroit Free Press reports.
Turnbull will be in the Tigers' rotation, Jason Beck of MLB.com reports. The job is well-earned, as Turnbull finished spring with a 1.80 ERA and a 15:3 K:BB in 15 innings. The 26-year-old made three starts and one relief appearance for the Tigers last season, recording a 6.06 ERA, though his underlying numbers (a 21.7 percent strikeout rate and a 5.8 percent walk rate) hinted at a brighter future.