Maybe If his arm is drained he depends upon the curve way more. Or any hook. Seems useless arm would clearly show up nor prominently on speedy ball velocity, not anything at all hooking. Libby pitched 86 innings past calendar year typically an inning or two at any given time. https://www.dailypioneer.com/2013/state-editions/silver-for-girls-in-east-zone-tennikoit-championship.html