It's Possible if his arm is fatigued he relies on the curve a lot more. Or any hook. Appears to be dead arm would exhibit up nor prominently on rapidly ball velocity, not something hooking. Authorities Talking to DailyMail.com explained the indications were 'non-particular' and so they required more info. https://www.dailypioneer.com/2021/trending-news/pm-greets-people-on-easter.html