Surgery to correct UCL tears is commonly known as “Tommy John” surgery, named after the famous baseball pitcher who underwent the first surgery for a UCL tear in 1974. Symptoms Tearing of the ligament usually occurs following some localized soreness of the elbow on the inside.

https://health.uconn.edu/orthopedics-sports-medicine/conditions-and-treatments/where-does-it-hurt/elbow/ulnar-collateral-ligament-tears/