Injuries to Brandon Marshall, Todd Davis are Broncos' biggest concerns headed into Patriots week – The Denver Post
More players are calling it quits in prime of their careers, Sports
How Su'a Cravens Fell Apart in Washington - Sports Illustrated
San Francisco 49ers Chris Borland retires over repeated head trauma
49ers rookie camp: Sights, sounds, signings
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Chris Borland retires after one season - NBC Sports
San Francisco 49ers Chris Borland retires over repeated head trauma
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Can 49ers break through championship window before it closes? - ESPN
2022 NFL season, Week 10: What We Learned from Sunday's games
Chris Borland to retire from NFL, fearing concussions
Re-living '99: Isaac Bruce's career day ends the 49ers 2-decade dynasty - Turf Show Times
Broncos, Wilson edge Niners, Garoppolo 11-10 in prime time