Justin Smith has said that the San Francisco 49ers need to focus on stopping the Houston Texans' running game this weekend.
The AFC South side's leading running backs, Arian Foster and Ben Tate, have 520 rushing yards so far this season.
The defensive end told the team's website: "They're pretty similar to what Seattle tries to do. They're stretch-cut, get you running one way, chop a guy down and bring [the running] back out the other way.
"They post guys up so that the backside guy can cut [the defensive lineman]. You watch tape and there are a lot of guys on the ground.
"It's going to be important for us up front to stay on our blocks, keep our feet out of that stuff, stay up so there's no cut-back lanes and tackle these two running backs. They got two really good ones."
The 49ers host the Texans on Sunday.
