Perhaps if his arm is worn out he relies on the curve way more. Or any hook. Appears to be useless arm would exhibit up nor prominently on rapid ball velocity, not anything at all hooking. Libby pitched 86 innings last year mainly an inning or two at any given https://www.dailypioneer.com/2016/state-editions/samajwadi-party-slams-bjp-and-bsp-for-attacking-the-dignity-of-women.html