Marshall's concussion charge
Leonard Marshall sued the NFL after testing positive for CTE
Doctors at UCLA and a company called TauMark say they've found the holy grail of concussion research: a scan to detect chronic traumatic encephalopathy (CTE) in athletes who are still alive. If the new test proves valid -- results are promising but preliminary -- it could change the lives of thousands of players. To see how, Peter Keating talked with former Giants All-Pro defensive end Leonard Marshall, who recently learned he tested positive for CTE.
Peter Keating: ...
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