strengthing my arm

Question
I am a 15 year old junior playing left field and i want to know the best way possible to play long toss from distance, how long i should play long toss for, how often, should i throw the ball on the line as far as possible or throw as far and high as i can. Just how can i best get that amazing arm that i want and need to get to the next level?

Answer
Jordan,
In the off season you shout long toss 2-3 times per week with no more than 50 throws per session.  when you start throwing get some height on the ball as you are loosening up and stretching the arm out.  When you are at the longest distance keep the ball high.  you don't have to throw the ball as high as you can but do gets some air under it.  As you start bringing your throwing partner closer to you, start throwing the ball on a line making sure you are doing a fundamentally correct crow-hop.   Doing long toss on a football field is best if you can.  You will be able to mark you distance and track your progress.

Thank You,
John Priest