AUSTIN (KXAN) — DeMarvion Overshown won’t play for the Dallas Cowboys in the 2023 season due to a torn ACL.

Cowboys head coach Mike McCarthy confirmed Monday what many had feared, that the promising rookie tore his ACL and is done for the season. The news was first reported Sunday night by Michael Gehlken of the Dallas Morning News.

Overshown injured his left knee in the first quarter of the Cowboys’ preseason game Saturday against the Seattle Seahawks. He tried to get up after making a tackle near the sideline, but then stayed on the ground and was in obvious pain, clutching his left knee. He eventually got up and was carted to the locker room.

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“You feel terrible for the young man,” McCarthy said during a press conference. “He has been, frankly, you can make the argument, the star of the rookie class. He stood out from the first time we got in the meeting room. You could see his ability right away.”

The former Texas Longhorns linebacker, nicknamed Agent Zero because of the number he wore for the Longhorns, was having a tremendous training camp and preseason for the Cowboys. Just before 2 a.m. Sunday after the injury happened, Overshown posted on X the message, “Still blessed.”

Overshown was drawing high praise from people throughout the organization for his work ethic and willingness to play multiple positions. The Cowboys selected him in the third round of the 2023 NFL Draft.