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Detroit Tigers Newsletter: Everything you need to know about Casey Mize and Tommy John

So, how’s your elbow feeling?

Of all the things that the past few MLB seasons have forced Detroit Tigers fans to become experts in — U.S. labor law, Cap Anson’s shoddily recorded playing career, the stunning effectiveness of sliders again shortstops with big contracts — the most frustrating one might be ulnar collateral ligament replacement, aka, “Tommy John surgery.”

The procedure, first performed in 1974 on then-Dodgers lefty Tommy John by Dr. Frank Jobe (who's no relation to the Tigers’ top pick in 2021, Jackson Jobe), involves swapping the elbow's UCL out for a tendon from somewhere else.