With it being revealed that Kneeland, who tragically took his own life last season, had Stage 1 CTE, it got me thinking about how the NFL can learn from it.

Former Dallas Cowboys player Marshawn Kneeland died in November. Boston University's CTE Center confirmed he had CTE. But what is the disease?

A new study reviewed health data from 19,824 football players who participated in at least one game between 1960 and 2019. The results were 'immense.'

Dallas Cowboys defensive end Marshawn Kneeland had early-stage CTE at the time of his November suicide, his family revealed after receiving results of postmortem testing.

Marshawn Kneeland's CTE diagnosis points to an even bigger problem in the NFL.

Eight months after Marshawn Kneeland’s death, researchers at Boston University’s CTE center have posthumously diagnosed the former Cowboys defensive end with Stage 1 of chronic traumatic encephalopathy. Reacting to Kneeland’s diagnosis on Tuesday, Dr.

Former Dallas Cowboys defensive end Marshawn Kneeland was found dead in the early hours of November 6, 2025, with the cause of death reported to be a self-inflicted gunshot wound. Eight months after the 24-year-old EDGE’s abrupt demise in Frisco, Texas, a new report has now revealed a major health finding.

Cowboys DE Marshawn Kneeland had CTE when he died by suicide in November. His case is not rare despite the fact he was just 24 years old.

The former Dallas Cowboys defensive end died by suicide in November of 2025 at 24 years old. Here's what researches are saying about his post-mortem diagnosis.