Sourdough Sam is the hardest working mascot in the NFL ... With his miners pick in the air Sam leads the San Francisco 49ers on to field now at Levi's®️ Stadium. Sam knows how important ...

Hall of Fame wide receiver Jerry Rice poses with the San Francisco 49ers' mascot ahead of the Week 1 matchup between the Arizona Cardinals and S.F. in this preview of the Epix show, "The Grind.