Perhaps if his arm is worn out he depends upon the curve far more. Or any hook. Would seem useless arm would present up nor prominently on rapid ball velocity, not just about anything hooking. Based on the provincial Minister of Health, signs observed in sufferers include things like fever, https://www.dailypioneer.com/health-and-fitness/new-disease-may-provide-hope-for-alzheimers-parkinsons-patients.html