New York Yankees pitcher Luis Gil was shut down during his bullpen session Friday, manager Aaron Boone told reporters. The American League Rookie of the Year felt some tightness near his right (throwing) shoulder and will undergo an MRI Saturday.

Gil, 26, went 15-7 with a 3.50 ERA in 29 starts for the Yankees last season. He was expected to be one of the key cogs in a star-studded rotation that also includes left-handers Max Fried and Carlos Rodon, and right-handers Clarke Schmidt and Gerrit Cole.

Although the exact cause of the tightness is unknown, Boone told reporters that Gil’s elbow is fine, according to YES Network’s Meredith Marakovits.

Luis Gil New York Yankees
DJ LeMahieu #26 of the New York Yankees is congratulated by teammates after hitting a walk off single during the game against the Toronto Blue Jays at Yankee Stadium on August 4, 2024, in New…


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Gil had yet to appear in a Grapefruit League game for the Yankees, and his 2025 debut is on hold for now. If the injury forces Gil to miss the start of the regular season, veteran Marcus Stroman is poised to begin the campaign as the Yankees’ No. 5 starter.

More to come on this story from Newsweek Sports.