Athlete pitching in a very competitive league. Had 10 or more strikeouts 70% of the time during the summer. Good rise and drop ball. During championship finals, uses same routine for warmup with great control/stuff/speed as usual. In the game, has significant loss in speed and pitches hardly break. Feels arm-body progression points out of sync. Next game, same thing, great control/feeling in warmup but on the mound, sync is way off. Possible cause?