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NFL rookie Adrian Coxson says next hit could kill him
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Adrian Coxson, an undrafted rookie who was cut by the Green Bay Packers, retired from the NFL due to health concerns stemming from a concussion.
02:20 - Source: CNN
Concussions in football 12 videos
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NFL rookie Adrian Coxson says next hit could kill him
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- Source: CNN
CNN's Sanjay Gupta interviews Dr. Betsy Nabel, the NFL's first medical adviser.
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