Maybe if his arm is fatigued he is dependent upon the curve way more. Or any hook. Would seem useless arm would show up nor prominently on quickly ball velocity, not nearly anything hooking. Libby pitched 86 innings last year typically an inning or two at any given time. He’s https://www.dailypioneer.com/2014/state-editions/annual-conference-ua-orthocon-2014-begins.html