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Brett Favre says he had 'thousands' of concussions during NFL career
Brett Favre says he suffered 'probably thousands' of concussions - The Washington Post
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2017 EWU Football Fact Book by Eastern Washington University - Issuu
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Packers legend Brett Favre claims he suffered thousands of concussion during his 20-year NFL career
NFL legend Brett Favre worryingly claims he had thousands of concussions during career - Mirror Online
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Brett Favre Says He Suffered 'Thousands' Of Concussions In NFL Career