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Come Fan with UsMonday, June 22, 2026

Royals starter Danny Duffy was diagnosed with a torn UCL, and as usually happens after a pitcher is diagnosed with a torn UCL, Duffy’s having Tommy John surgery.

  • Jeff Sullivan

    Jeff Sullivan

    Danny Duffy Indeed Having Tommy John Surgery

    Pitchers pitch, and sometimes after they pitch for a short while or a long while, they develop a tear in the ulnar collateral ligament in the throwing elbow. When the tear is partial, a pitcher can decide between trying to rehab, or going under the knife for ligament replacement, otherwise known as Tommy John surgery. They usually opt for Tommy John surgery. When the tear is complete, a pitcher needs Tommy John surgery.

    Royals starter Danny Duffy was diagnosed with a torn UCL. He sought a second opinion, like they always do, but his fate was inevitable:

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  • Grant Brisbee

    Grant Brisbee

    Danny Duffy Likely Needs Tommy John Surgery

    Duffy has a career 2.65 ERA in 350 minor-league innings, with a 407/110 strikeout-to-walk ratio. He was ranked as the #68 prospect in baseball before the start of last season, when he lost his rookie eligibility.

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  • Jeff Sullivan

    Jeff Sullivan

    Danny Duffy Injury Sends Royals Starter To Disabled List

    As a sophomore in 2012, Royals starter Danny Duffy has averaged just over 95 miles per hour with his fastball. That is an even better fastball!

    Now, correlation is not causation and I can’t prove any link here, but while Duffy’s velocity is up, he’s also recently dealt with elbow problems. Sunday, Duffy had to be removed from a start after feeling elbow discomfort, and he was sent for an MRI. The Royals don’t yet know the results of the MRI, or they do know and haven’t yet made them public, but whatever the case, the Royals have gone ahead and placed Duffy on the disabled list:

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