Athletics' Jack Perkins Debuts as Starter Amid Rotation Shakeup

Jack Perkins, a 25-year-old right-handed pitcher and the Athletics' No. 7 prospect, made his first Major League start against the Arizona Diamondbacks after primarily serving as an effective reliever with a 2.75 ERA and 19 strikeouts over 19.2 innings. Transitioning from bullpen to starting rotation following the trades of Mason Miller and JP Sears, Perkins threw three innings, allowing four runs on five hits and three walks while striking out four, using 62 pitches on three days' rest. His repertoire includes a fastball topping 98 mph and a sweeping slider that has generated a nearly 45% miss rate, making him a promising rotation candidate despite some early struggles. Athletics manager Mark Kotsay expressed confidence in Perkins' ability to adapt to the starting role, noting his consistent competitiveness and the similar mentality required for both roles. While Perkins' initial start was limited in innings, he is projected to be a key member of the Athletics' rotation beyond 2025, as the team tests its young pitching depth after trading key arms. His performance so far suggests potential deep league value, though his stamina for longer outings remains uncertain.