49ers sign six-time Pro Bowler Alex Mack
Former Cleveland Browns C Alex Mack announces retirement from NFL
49ers eager to see what center Alex Mack has left at 35
Morning Report: NFL.com Says 'Not to Doubt' Alex Mack in 2021
Former Browns' first-round pick Alex Mack retires from NFL
Chiefs rally late in preseason win over the 49ers
49ers signing center Alex Mack, with Trent Williams breaking the news – KNBR
49ers' Alex Mack announces retirement
49ers Pro Bowler Shares Reasons for Walking Away: Insider
49ers free agency: Cal product Alex Mack fills big need
Bob Padecky: Don't get too excited over 49ers' wild-card win
49ers roster: C Alex Mack expected to return
News and notes from the San Francisco 49ers - Revenge of the Birds