Marshawn Kneeland
Coverage of Marshawn Kneeland in the Nexus archive.
- Former Dallas Cowboys defensive end Kneeland had early stage CTE at time of death
Marshawn Kneeland, a Dallas Cowboys defensive end who died by suicide in 2025, was diagnosed with early-stage chronic traumatic encephalopathy (CTE) after his death. The Boston University CTE Center confirmed the diagnosis, linking it to repeated head trauma. Kneeland's family emphasized the importance of raising awareness about CTE in athletes.
- Dallas Cowboys defensive end Marshawn Kneeland had early stage CTE at time of death
Dallas Cowboys defensive end Marshawn Kneeland was diagnosed with early stage CTE at the time of his death. CTE is a degenerative brain disease found in athletes in contact sports, combat veterans, and others who experience repetitive blows to the head.
- Cowboys defensive end Marshawn Kneeland posthumously diagnosed with CTE
Marshawn Kneeland, a Dallas Cowboys defensive end, was posthumously diagnosed with Stage 1 CTE after his death by suicide in November 2025. His family donated his brain for research, and Boston University’s CTE Center confirmed the diagnosis, highlighting the disease’s prevalence in young athletes.