Seahawks vs. Cardinals NFL Week 18 props, odds: Arizona would be playoff spoiler, land over league-low preseason betting win total with upset victory

The Arizona Cardinals entered this season with the lowest over/under win total of any team on the NFL futures board at 4.5. They would exceed that number on Sunday in the regular-season finale by upsetting visiting Seattle, which has to win and get help elsewhere to have any shot at an NFC wild-card spot. The Seahawks are currently -3 on the SportsLine consensus.
  
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