Glasnow blames MLB crackdown for UCL injury

3:16 PM ET

CHICAGO — Tampa Bay Rays right-hander Tyler Glasnow sounded off on Major League Baseball’s crackdown of foreign substances Tuesday after he was diagnosed with a partially torn ulnar collateral ligament and a flexor tendon strain.

Glasnow said, in advance of MLB’s initiative, he did away with using sunscreen — the only foreign substance he said he has ever used — two starts ago and felt sore the next day due to needing to adjust his grips. He did the same in Monday’s outing against the Chicago White Sox and then felt something “pop” in his arm.

“I switched my fastball grip and my curveball grip,” an animated Glasnow said on a videoconference with reporters. “I had to put my fastball deeper into my hand and grip it way harder. Instead of holding my curveball at the tip of my fingers, I had to dig it deeper into my hand.

“I’m choking the s— out of all my pitches.”

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Glasnow left Monday night’s game after four innings. He said he understands what MLB is trying to do in eliminating Spider Tack and other sticky substances but has an issue with doing it midseason and eliminating everything all at once.

Teams were informed Tuesday

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