Does Tommy John surgery change a pitcher’s spin rate, velocity, or whiff ratio? Turns out, according to a new study, Major League Baseball pitchers who undergo ulnar collateral ligament reconstruction (UCLR) do not experience any significant decreases in the spin rate, velocity, whiff rate, or hard-hit rate of 4-seam fastball, 2-seam fastball, or slider at 2 years after ulnar collateral ligament reconstruction—aka: Tommy John Surgery.
Source: Orthopedics This Week
