Aaron Nagler of Cheesehead TV joined the Steve Czaban Show Wednesday to start previewing the big showdown Sunday night between the Packers and the 49ers in San Francisco. While the 49ers have a stout defense that will pose a threat to Green Bay's running offense, Nagler feels the Packers need run right at San Francisco's defensive line led by Nick Bosa. Green Bay will struggle offensively, in Nagler's opinion, if the Packers rely on Aaron Rodgers to throw the ball more than 40 times. That gameplan will play right into San Francisco's hands and allow them to pressure Rodgers more as the game goes on.