Hayden Johnson is a physically imposing 6'5", 215-pound southpaw who missed bats at an elite rate in 2025, posting a dominant 12.91 K/9 and 32.9% strikeout rate over 38.1 innings. The arsenal is anchored by a fastball that sits 91-93 and touches 95 mph, playing up due to some funk in the delivery. Arsenal refinement seems to be the next leap for Johnson in 2026. Last season, his slider and curveball blended at times, and he had no armside secondary offering (change, split, etc.) The command profile can also take a step forward at the next level, as a 4.23 BB/9 and elevated barrel rate (17.4%) suggest he can lose the zone and get punished when he is too fastball heavy in hitters counts. If he can reduce free passes while polishing a complete arsenal over a full starter's workload in 2026, Johnson profiles as a potential mid-rotation starter with strikeout upside and size to handle innings and more velocity.