fernandez and kris medlen with surgery number two. young stars on the shelf. these guys throw hard, strasberg throws 95 miles an hour. the cincinnati reds chapman closed at 106 miles an hour. not only are the balls coming faster, with more stuff. 95 to 100 miles an hour. ridiculous amount of torque on the arm. bronson arroyo of the diamondbacks announced that he will undergo tommy john surgery to replace a torn elbow ligament. so i thought i was going to take time off, a lot of swelling but i was surprised that he said it was ripped off the bone. despite intense monitoring and cautious pitch limits a third of big league pitchers have had this operation. the american sports medicine institute calls it an epidemic. they say the damage doesn t start at the professional level. what pitchers are doing in