Dallas Cowboys running back Ezekiel Elliott is suspended for six games after domestic violence incidents.
All but one former National Football League player in the research were found to have brain disease.
Representatives from five sports meet to discuss a "unified approach" to the prevention and management of head injuries.
Ahead of his first training camp, Bath's Alex Jenkins prepares to take the next step from soccer hopeful to NFL star.
Audio & Video
NFL Show pundits Osi Umenyiora and Jason Bell show off some of their best skills, including the perfect throw and Osi's signature 'freeze-chop-club' move.
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