To open the month of June, the Diamondbacks' season may have taken a turn for the worse.

With former Cy Young winner Corbin Burnes on the mound for a date with the Nationals, Arizona had built a 3-0 lead through four innings. As Burnes needed one more out to close the fifth, he immediately signaled for help from the dugout with an apparent elbow injury.

Burnes' signaling for help was concerning enough, but the broadcast picked up Burnes relaying a potentially devastating message to the training staff.

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Here's what to know about Burnes' injury.

Corbin Burnes injury update

Burnes left Sunday's game with inflammation in his elbow, according to a report from USA Today's Bob Nightengale. Nightengale's report added that "there's initial cautious optimism that he avoided serious injury."

Diamondbacks ace Corbin Burnes left today’s game with inflammation in his elbow and there’s initial cautious optimism that he avoided serious injury.

— Bob Nightengale (@BNightengale) June 1, 2025

After allowing a two-out single to Nationals shortstop CJ Abrams, Burnes waved to the dugout with a look of concern on his face.

In that moment, Burnes appears to say, "My elbow."

"My Elbow" - Corbin Burnes pic.twitter.com/gEe8qbFDgw

— Dan Why-Ner (@ReallyDanWeiner) June 1, 2025

Cameras then picked up a conversation between Burnes and the team's athletic trainers in which the 2021 Cy Young winner appears to say, "My elbow's gone. It's dead," to describe what he felt.

"My elbow's gone. It's dead." - Corbin Burnes pic.twitter.com/eA6bFQ6Xiz

— Dan Why-Ner (@ReallyDanWeiner) June 1, 2025

He was pulled from the game after that brief consultation.

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After the game, Burnes told reporters he didn't feel a pop and described the sensation as "tightness." He's set to undergo an MRI early Monday morning.

Corbin Burnes speaks of injury. Described as tightness

Later also said no popping sensation

MRI at 5 AM pic.twitter.com/Oym9UXzfef

— Jack Sommers (@shoewizard59) June 1, 2025

Burnes, 30, is in his first season with Arizona after spending the 2024 campaign in Baltimore. Sunday was Burnes' 10th start of the 2025 season, and he had posted a 3-2 record.

Arizona has yet to provide any information on Burnes' situation.

This story will be updated.