Former Dallas Cowboys defensive end Marshawn Kneeland was diagnosed with Stage 1 chronic traumatic encephalopathy (CTE) following his death by suicide last November, according to findings released Tuesday by the Concussion & CTE Foundation and researchers at the Boston University CTE Center. NY Times Kneeland, who was 24 years old, played two seasons with the Cowboys after being selected in the second round of the 2024 NFL Draft out of Western Michigan. Researchers determined