Stiever's contract was purchased prior to his start Sunday against the Tigers.
A top-10 prospect in a shallow White Sox system, Stiever has a mid-90s fastball and could eventually develop into a mid-rotation starter. The 23-year-old righty logged a 2.15 ERA, 0.97 WHIP and 77 strikeouts in 71 innings at High-A last year, but he has never pitched above that level. That said, this is a pretty solid matchup for him, and he has the stuff to have success in any given start.