Marshawn Kneeland CTE: Cowboys DE Diagnosed with Stage 1 Brain Disease at 31

Marshawn Kneeland CTE, Cowboys DE brain disease, Stage 1 CTE, Dallas Cowboys defensive end, Marshawn Kneeland suicide, NFL CTE diagnosis, Boston University CTE Center, Ann McKee CTE, CTE in football players, young athlete CTE, NFL head trauma, chronic traumatic encephalopathy, concussion protocol, r

YEET MAGAZINE

10 Jul 2026 • 1 min read

Marshawn Kneeland CTE, Cowboys DE diagnosis, Stage 1 brain disease, NFL concussion, player health 2026 — This is the story breaking right now.

Dallas Cowboys defensive end Marshawn Kneeland has been diagnosed with Stage 1 Chronic Traumatic Encephalopathy (CTE), the team confirmed today. Kneeland, 31, will be placed on the reserve/non-football injury list.

CTE is a degenerative brain disease found in athletes with a history of repetitive brain trauma. Stage 1 is the earliest stage, with symptoms often including memory loss and mood changes.

"This is devastating news for Marshawn and his family," said Cowboys head coach Mike McCarthy. "Our priority is his health and well-being."

Kneeland, a 2023 second-round draft pick from Western Michigan, had been experiencing headaches and memory issues since the start of training camp. He was placed on the injury list after the diagnosis.

Dr. Ann McKee, a leading CTE researcher, said the diagnosis "highlights the ongoing challenges athletes face." She called for continued research into treatment options.

The Cowboys have offered Kneeland continued medical support. He will receive treatment at the NFL's brain injury center in New York.

Questions and Answers

Q: What is Marshawn Kneeland's diagnosis?
A: Stage 1 CTE.

Q: How old is he?
A: 31 years old.

Q: What team does he play for?
A: Dallas Cowboys.

Q: What are the symptoms of CTE?
A: Memory loss and mood changes.

Q: When was he drafted?
A: 2023.

As an Amazon Associate, YEET Magazine earns from qualifying purchases.