49ers linebacker Chris Borland retiring at 24 due to long-term health
San Francisco 49ers release linebacker NaVorro Bowman - ESPN
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NaVorro Bowman Stats, Profile, Bio, Analysis and More
NaVorro Bowman retires from NFL
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Four-time All-Pro NaVorro Bowman retires as a 49er, one-day
NaVorro Bowman wishes he was still on 49ers, believes he can still
NaVorro Bowman Retires from NFL as a Member of the 49ers