A recent discovery made months after Marshawn Kneeland's passing has once again started conversations about the hidden toll of football. The researchers are uncovering shocking evidence about the long-term effects of repeated head trauma.

Eight months after the 24-year-old defensive end passed away, specialists at the Boston University CTE Center confirmed that post-mortem testing found Stage 1 chronic traumatic encephalopathy (CTE) in his brain.

“Unfortunately, I was not surprised to find CTE in the brain of Mr. Kneeland, because we have found this progressive brain disease in nearly half of the athletes we’ve studied who have d*** before the age of 30,” Dr. Ann McKee, director of the Boston University CTE Center, said via NBC Sports.

Dr. McKee's comments via NBC Sports' Mike Florio highlighted a troubling pattern that researchers noticed among young athletes.

Although the former Dallas defensive end played during an era that had strict concussion protocols and advances in helmet technology, experts said that those upgrades did not completely remove the risk of developing CTE.

The researchers stated strongly that the disease remains progressive and can only be diagnosed after the demise. The findings have also reopened discussions throughout the NFL community regarding players' safety and long-term neurological health.

Even though Stage 1 represents the earliest identified form of CTE, researchers believe that even early-stage disease needs serious attention.

Not just the NFL, but sports like soccer, hockey, boxing, basketball, and combat sports result in blows to the head. Dr. McKee's team thanks the team of the brain donors and is focused on finding permanent treatments for CTE.

While researchers explained the medical significance of Kneeland's diagnosis, those closest to him offered a personal perspective on what these findings mean.

Marshawn Kneeland's girlfriend breaks silence after CTE diagnosis

Marshawn Kneeland passed away on November 6, 2025. His girlfriend, Cataline Mancera, shared an emotional statement sharing about his CTE diagnosis.

“While this diagnosis does not change the tragedy of his passing, it provides important context about some of the struggles he may have been facing,” Kneeland’s girlfriend, Catalina Mancera, said as per Dallas News. “...We continue to remember Marshawn with compassion for the person he was, rather than defining him by the final moments of his life.”

Mancera emphasized that the diagnosis should not overshadow Kneeland's character or legacy but help grow a greater understanding of the challenges that the athletes face silently.

She also shared a message to create awareness about athletes' mental health and problems, stressing that it should not be overlooked.

What are your views on the new findings by the researchers on the Marshawn Kneeland case? Let us know in the comments!

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Written by

Hetal Moleshri

Edited by

Aadesh Dhote