Marshawn Kneeland, Late Dallas Cowboys Star, Had CTE at Time of Suicide


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Again in November of 2025, Dallas Cowboys defensive finish Marshawn Kneeland died by suicide.

On the time, there was widespread hypothesis that Kneeland had been affected by CTE, a situation tragically widespread amongst NFL gamers.

Now, these fears have been confirmed.

A medical laboratory technician conducts an experiment. A medical laboratory technician conducts an experiment.
A medical laboratory technician conducts an experiment. (Picture by Pablo Blazquez Dominguez/Getty Photographs)

Eight months after Kneeland’s dying on the age of 24, researchers have confirmed that Kneeland was affected by Stage 1 power traumatic encephalopathy, a degenerative mind illness linked to repeated head impacts.

His household additionally confirmed that he died by suicide following the posthumous analysis.

The Concussion & CTE Basis introduced on July 7 that researchers at Boston College’s CTE Middle examined Kneeland’s mind tissue after his dying and recognized early-stage CTE.

“Sadly, I used to be not stunned to seek out CTE within the mind of Mr. Kneeland, as a result of we now have discovered this progressive mind illness in practically half of the athletes we’ve studied who’ve died earlier than the age of 30,” Dr. Ann McKee mentioned in a press release.

McKee added that the findings underscore the necessity for continued analysis into the illness and its results on younger athletes.

Slightly than permitting Kneeland’s story to finish with tragedy, his family members hope his analysis encourages extra conversations in regards to the long-term results of repetitive head trauma.

His girlfriend, Catalina Mancera, mentioned the household selected to share the analysis publicly within the hopes that it might assist others.

“Marshawn was a lot greater than the way in which he died,” she mentioned. “If sharing his story helps even one household acknowledge the indicators or pushes analysis one step additional, then his life will proceed to make a distinction.”

Catalina welcomed a son by Marshawn in June, a number of months after Kneeland’s dying.



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