Seahawks Have 'Monster' Day in San Francisco - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

Seahawks Have 'Monster' Day in San Francisco

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SAN FRANCISCO, CA - The Seattle Seahawks showed San Francisco they intend to win a fourth straight NFC West title and knocked the 49ers starting quarterback out of the game with an injury, too.

Improving their record to a division-leading 3-1, the Seahawks beat the 49ers 23-3 at San Francisco as quarterback Matt Hasselbeck passed for 281 yards and two touchdowns and their defense took care of the rest. The 49ers beat the Seahawks twice last season. Seahawks defensive tackle Rocky Bernard knocked quarterback Alex Smith out of the game with a separated right shoulder on a sack on the third play of the game. The 49ers don't know when Smith will be able to return.

Seahawks wide receiver Deion Branch had seven catches for 130 yards today as Seattle evened San Francisco's record at 2-2. Seattle's defense got two interceptions from cornerback Marcus Trufant and three of its six sacks from former 49ers linebacker Julian Peterson.

After Smith was injured, the 49ers went to backup quarterback Trent Dilfer, but the 35-year-old veteran could only lead his team to a field goal. Dilfer was 12-for-33 passing for 128 yards, with two interceptions. Third-string Seahawks running back Alvin Pearman suffered an apparently serious knee injury, but the Seahawks said they won't know its extent until tomorrow. Backup Seahawks quarterback Seneca Wallace lined up on offense on a handful of plays, throwing a pass, catching an 18-yard throw and running the ball once.

49ers wide receiver Darrell Jackson had three catches for 38 yards. He was traded by the Seahawks to San Francisco in April after seven seasons in Seattle.