Nick Wagoner ESPN Staff Writer

The 49ers controlled the action for most of the first half against the Cardinals but the scoreboard doesn't really show it as they lead just 13-10 going into the locker room. Some sloppy mistakes, including having a punt blocked, and struggles on third down have prevented the Niners from extending their lead and the Cardinals found some rhythm on offense by going without a huddle. For 49ers to start 1-0, they have to be more efficient on third down and less reliant on just hitting big plays.