Seahawks smother 49ers in key early-season showdown, 29-3

Marshawn Lynch scores three TDs and Seattle defense does rest, intercepting three Colin Kaepernick passes in rousing win over NFC West rivals.SEATTLE — Richard Sherman celebrated by dancing with cheerleaders, Marshawn Lynch cut, plowed and walked his way to three touchdowns and Pete Carroll got one rousing birthday gift — a 29-3 victory for his Seattle Seahawks in their NFC West showdown with the San Francisco 49ers.