A young NFL player’s death has taken on new medical context. Marshawn Kneeland, the former Dallas Cowboys defensive end who died by suicide at 24 during the 2025 NFL season, was diagnosed after death with stage 1 chronic traumatic encephalopathy,

CTE, or chronic traumatic encephalopathy, is a degenerative brain condition that has been linked to repeated head impacts over time, as explained by The Mayo Clinic. In football, that usually means years of hits—both big and small—that gradually affect ...

Adam Hunter's best friend has accused the AFL of failing the Eagles great as scrutiny grows over football's handling of CTE

The ABC told the story of Nick Lowden, who at 23 became the youngest AFL footballer diagnosed with CTE. One expert argued children under 18 should be banned from playing the game.

The recent Four Corners episode exposed the devastating impacts of degenerative brain disease chronic traumatic encephalopathy (CTE) and its link with contact sports, primarily Australian rules football.