Quarterback Russell Wilson #3 of the Seattle Seahawks throws the...

Quarterback Russell Wilson #3 of the Seattle Seahawks throws the ball during the first quarter of the game against the San Francisco 49ers at CenturyLink Field on Dec. 14, 2014 in Seattle. Credit: Getty Images / Otto Greule Jr

SEATTLE -- Marshawn Lynch rushed for 91 yards and a touchdown, Russell Wilson threw a touchdown pass to rookie Paul Richardson, and the Seattle Seahawks knocked archrival San Francisco from playoff contention 17-7 Sunday.

The defending Super Bowl champions remained in contention for a division title and No. 1 seed in the NFC.

After a sluggish, sloppy first half, Seattle (10-4) awoke in the final 30 minutes behind the running of Lynch and a defense that shut out the 49ers, holding them to 67 yards. Colin Kaepernick was sacked six times and the 49ers didn't run a play past the Seattle 38 in the second half.

Lynch scored on a 4-yard run late in the third quarter and the Seahawks took advantage of a short field on their next drive, capped by Wilson's strike to Richardson.

The loss and Detroit's win eliminated San Francisco (7-7) from contention.

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