It's possible if his arm is weary he relies on the curve much more. Or any hook. Looks lifeless arm would demonstrate up nor prominently on speedy ball velocity, not anything at all hooking. But It's not necessarily ruled out, because the inhabitants is generally in poor health and fitness https://www.dailypioneer.com/2015/sports/sainas-rise-to-top-of-the-world-highlight-of-the-year.html