Dallas Cowboys defensive end Marshawn Kneeland died Thursday morning, the team announced.

“It is with extreme sadness that the Dallas Cowboys share that Marshawn Kneeland tragically passed away this morning,” the team said in a statement. “Marshawn was a beloved teammate and member of our organization. Our thoughts and prayers regarding Marshawn are with his girlfriend Catalina and his family.”

Kneeland was 24.

Neither Kneeland’s agent Jonathan Perzley or the Cowboys disclosed details of how the second-year player died.

“I am shattered to confirm that my client and dearest friend Marshawn Kneeland passed away last night,” Perzley said in a statement. “I watched him fight his way from a hopeful kid at Western Michigan with a dream to being a respected professional for the Dallas Cowbo

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