A former Dallas Cowboys player has been diagnosed with a brain condition. Marshawn Kneeland, a defensive end, was found to have Stage 1 CTE by researchers at Boston University.

This diagnosis was made after Kneeland's death in North Texas. He died by suicide last November. Further details about Kneeland's diagnosis and death are available from the source.

Limited information is available about Kneeland's case, but the diagnosis of CTE has been confirmed by Boston University researchers. For more information, readers can refer to the original report.