AP file photo: Arizona Cardinal running back David Johnson (31) takes a leap of faith over Carolina Panthers defender Robert McClain (27) last Sunday. Johnson and the Cardinals will face the 49ers this Sunday.

The 49ers are giving up record numbers of yards on the ground up around 150 yards or more every game to be honest your going to loose games if your giving up that much yardage controlling the clock, controlling the field position it’s impossible. You can survive a game like that maybe once or twice but given the consistency of it. The Arizona Cardinals who already played the 49ers will host them again at the University of Phoenix at Glendale this Sunday.

The Cardinals know they can take advantage of the awful 49ers run defense the Cards are going to give the ball to David Johnson and he’s going to run it down their throats. The 49ers haven’t shown any ability to stop the run. As of Wednesday were not sure of the full status of Eric Armstead as he got hurt in the last game.

David takes a look at the 49ers each week on the podcast at http://www.sportsradioservice.com