NEW YORK (CBSNewYork/AP) — Yankees star Aaron Judge left Saturday’s game after injuring his left oblique and is now set to undergo an MRI.

Judge gingerly made his way to first base after hitting a single against Kansas City and was immediately pulled. Judge was seen visibly angry and frustrated once reaching first base, appearing to know that the injury was fairly significant.

The All-Star slugger had homered in the first for a New York team already missing a dozen players because of injuries.

Judge appeared to feel something on his side and labored to run it out his sixth-inning single. Trainer Steve Donahue came from the dugout to check on Judge, who then left.

Aaron Judge #99 of the New York Yankees leaves a game in the sixth inning against the Kansas City Royals with trainer Steve Donohue at Yankee Stadium on April 20, 2019 in New York City. (Photo by Jim McIsaac/Getty Images)

Judge hit his fifth home run and is batting .288 with 11 RBIs. The right fielder has played in every game this season.

New York entered the game with 12 players on the injured list, including Giancarlo Stanton (strained left biceps), Luis Severino (right rotator cuff inflammation), Gary Sanchez (strained left calf) and Aaron Hicks (lower back strain).

Of their injured players only Sanchez appears close to returning. Before the game, manager Aaron Boone said the catcher could return from a strained left calf Wednesday in Anaheim against the Angels if there are no problems in a minor league rehab game on Monday.

(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)