Explaining the NFL's latest concussion controversy and policy change : NPR
2021 NFL Week 13 Injury Report
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Banned for concussions, college football players still recruited
Vikings WR Adam Thielen injury update; plus, more NFL news from Week 13's Sunday games
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NFL Week 13 injury report for 2021 NFL season
Source - Handling of WR DeVante Parker's injury to be reviewed - ESPN
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How Tua Tagovailoa has been working this offseason to avoid head injuries
Anthony Richardson clears concussion protocol, will start for Colts vs. Rams in Week 4
NFL launches new concussion protocol after Dolphins' QB injury l GMA