Matchup to watch: Marshawn Lynch vs. Cowboys defensive front

The Cowboys take on one of the better running backs in the league in their Week 2 contest at Seattle.

Running back Marshawn Lynch (5-11, 215) makes it hard for defenders to bring him down with arm tackles, and defenses must gang tackle him.

Outside linebacker Anthony Spencer said that was a major point of emphasis this week in practice: Getting to the ball carrier. In Seattle's Week 1 loss to Arizona, Lynch rushed 21 times for 85 yards. With Seattle starting a rookie at quarterback and with two nicked up receivers, the Seahawks will need Lynch to get about 18 to 20 carries Sunday afternoon.

"He's not going to let anyone arm tackle him or one person bring him down," Spencer said. "You see that on film all the time. Even after contact, he’s still running and trying to run through people even guys, 300 pound guys, have him wrapped up. We know we have to get after him and get everybody to the ball."

In the loss to Arizona, Lynch broke three tackles, which leads the league according to Stats Inc. In 2011, Lynch finished third in the league with 19 broken tackles -- three more than 2010 when he finished with 16.

The Cowboys will have to stop Lynch without nose tackle Jay Ratliff. He's going to miss the second consecutive game with a high-ankle sprain. Josh Brent and Sean Lissemore will share the snaps at nose tackle for the Cowboys. In their Week 1 victory over the New York Giants, the Cowboys allowed 82 yards rushing.

Stat you need to know: Lynch has never lost a fumble in the fourth quarter or overtime.