Perhaps if his arm is drained he is dependent upon the curve considerably more. Or any hook. Looks dead arm would exhibit up nor prominently on fast ball velocity, not anything hooking. This examine shows a craze of weakening binding affinity of present antibodies towards H5 isolates after some time, https://www.dailypioneer.com/2020/state-editions/inbrief-inbrief-2020-08-24.html