Thank you for your response!!! Yes he has seen a doctor and is receiving dry needle when needed. The cortisone shots have seemed to help the best but we are only doing those sparingly. the videos have been helpful, and he has improved his range of motion by reaching back to the barbell and stretching out the T spine.
When he is in a wrestling match, and his opponent really pulls on that left shoulder, a great amount of pain is created and then he has to push through it for the rest of the tournament. Any more advice would be greatly appreciated, but thank you for your time and concerns.