Seattle (4-5) at San Francisco (5-4) Sunday, 4:05 p.m. EST, Fox BetMGM NFL odds: 49ers by 6 1/2. Against the spread: Seahawks 2-6-1; 49ers 4-5. Series record: Seahawks lead 30-23. Last meeting: 49ers beat Seahawks 36-24 in Seattle on Oct. 10.