A big 6-foot-6 southpaw, Peterson has the potential to have three above-average pitches and and above-average command down the road, hinting at a future role as a No. 4 starter. His low-90s fastball isn't much of a bat-misser, but he should excel at generating groundballs. His slider and changeup both have the potential generate whiffs, and while neither is a plus pitch right now, both have a chance to get there. The key for Peterson will be carrying over the excellent control he showed in his junior season at Oregon, where he posted a 1.4 BB/9. Surgery to remove an ingrown toenail limited him to just three starts for a total of just 3.2 innings in his pro debut. He is advanced enough to head to Low-A or High-A this season. If he were to experience a slight uptick in velocity, Peterson's secondaries and command profile could allow him to project as No. 2 or No. 3 starter, but for now his upside appears capped.