Nothing has ever revolutionized sports medicine, or perhaps even sports themselves, more than Tommy John Surgery, a procedure invented and performed for the first time 43 years ago this week by Dr. Frank Jobe on the procedure's namesake. Mike and Bill look at the careers of John and Jobe, who will forever be linked by the groundbreaking technique, and Yahoo! Sports's Jeff Passan (@jeffpassan), the author of The Arm, explains the surgery itself and how it, and the need for it, have evolved over time.