Even though the Cardinals are an NFL-best 9-1 and in control of the NFC West and the conference, they are still the underdog heading to Sunday's game against the Seahawks in Seattle. The 6-4 Seahawks are favored by 6.5 points in Las Vegas. Cardinals coach Bruce Arians isn't mad about it though. "I would've anticipated that," he said. "Going up there, everybody's usually an underdog. It's another one of those things that we don't really need any extra motivation to go play them, especially at their place. "They're the world champions. We're just 9-1. We haven't done s--- until we do something, but this is a big game." The teams will play again in week 16, but a win this week would put the Cardinals four games up on the Seahawks with five games left in the regular season. The Cardinals upset the Seahawks last year 17-10 in Week 16 last season, snapping the Seahawks' 14-game home winning streak. Will the Cardinals be able to put up another hard fought win? Should they be the favorites?