Seattle begins its playoff quest as Super Bowl favorites and welcomes a divisional foe in San Francisco, which just survived a 23-19 trip to Philadelphia . The Seahawks already forced the Niners into a 13-3 dud in Week 18, a result that secured home-field advantage and framed why Seattle is a 7.5-point favorite at Lumen.  San Francisco’s path here has leaned on road toughness all season, but this is its third crack at Seattle, splitting the regular-season matchups. The BetMGM bonus code