I am somewhat stumped and would like to get input on this issue.
My son is 15 (lefty) and has been working on breaking balls for a couple of years. This past summer was the first season that I allowed him to throw a breaking ball in a game. He has developed a very nice curve and a very good slider but his fast ball has actually lost speed. They put a gun on him at high school tryouts and said that, even though he had a decent number of pitches, good control, good mechanics, and decent movement on his pitches, he wasn’t going to pitch unless he had better heat.
I have no idea on what can be done to increase the speed of his fast ball. He is a good size kid and pretty strong (does weight and core training on a regular basis). He also plays first and can gun the ball to third on a straight line, so his arm isn’t weak. The only thing I have noticed is that his outer tricep gets sore after throwing a great deal. He has started doing additional arm exercises and the soreness is way down.
Any suggestions or should he just concentrate on first base?
ps… since he started throwing breaking balls, his change up, which was once his best pitch, has kind of hit the dumper.