A former MLB pitcher has passed away. Tommy John, known for undergoing a groundbreaking elbow surgery, died at the age of 83. The surgery, which took place in 1974, involved reconstructing a ligament in his elbow.

It is a procedure where a tendon from another part of the body is used to replace the damaged ligament. Further details about Tommy John's life and career are available from the source, including his time with the New York Yankees and his return to baseball after the surgery.