On September 25, 1974, Tommy John of the Los Angeles Dodgers undergoes history-making surgery on his left arm.

In a revolutionary surgical operation, Dr. Frank Jobe repairs Tommy John’s damaged ulnar collateral ligament by replacing the elbow tendon of the pitching arm with a tendon from the right wrist. The procedure, now known as Tommy John surgery, will give the southpaw, who was unlikely to ever be able to pitch again, an opportunity to post an additional 164 victories, more than half of his career total of 288 victories