Former Cowboys DE Kneeland Had Early Stage CTE

Former Dallas Cowboys defensive end Marshawn Kneeland, who died by suicide in November 2025 after a high-speed chase with police, had early stage chronic traumatic encephalopathy, a brain abnormality linked to repeated concussions.

The Boston University CTE Center determined Kneeland was in stage one of four of the disease after analyzing his brain tissue following his death at age 24. mchezo.co.za