‘”In order to get the throwing mechanics to work, first you need muscles and tendons that attach the muscles to the bones in order to be intact, in order to have the throwing mechanic work,” said Dr. Jason Matuszak, Chief of Sports Medicine at Excelsior Orthopedics. “Those are something called the flexor pronator muscles on that part of the elbow, and that’ll be the first area that they want to evaluate for, to make sure that the muscles and tendons are intact and that the motion is still working.”‘