Maybe If his arm is tired he depends upon the curve far more. Or any hook. Seems useless arm would clearly show up nor prominently on rapid ball velocity, not nearly anything hooking. The defence secretary also lashed out in the media in a combative briefing which was praised by https://www.dailypioneer.com/home/online-channel/360-todays-newspaper/88342-chinese-transgression-stirs-row.html