Keys to the Game: 49ers vs. Cardinals San Francisco 49ers by: KRON4 Posted: Oct 4, 2018 / 07:09 PM PDT / Updated: Oct 4, 2018 / 07:09 PM PDT KRON4 presents the Keys to the Game ahead of the San Francisco 49ers taking on the Arizona Cardinals. The game is scheduled for this Sunday at 1:25 p.m. at Levi’s Stadium in Santa Clara. Watch the video above for KRON4’s Keys to the Game.