Justin Smith Considering Comeback?
49ers' Justin Smith calls it quits after stellar 14-year career
Justin Smith retirement: 49ers defensive tackle to call it a career - Niners Nation
Pro Football Journal: Justin Smith—Recently Retired Already Forgotten?
Justin Smith Announces Retirement from NFL
Justin Smith (defensive end) - Wikipedia
Ex-49ers Patrick Willis, Justin Smith get their Hall of Fame chance
San Francisco 49ers star Justin Smith retires from the NFL, NFL News
Breaking Down San Francisco 49ers' Best Replacement Options for Justin Smith, News, Scores, Highlights, Stats, and Rumors
Justin Smith – Missouri Sports Hall of Fame
Niners defensive tackle Justin Smith retires