Sunday's loss also put a sudden end to the Seahawks' 14-home-game winning streak. They lost at home for the first time since falling to the 49ers on Christmas Eve of 2011, 19-17.
"I'm not shocked - you have to be prepared for the good and bad," said Seahawks safety Earl Thomas. "You just go out there and have fun and play the game and enjoy your teammates out there. I think we did a great job - you only control what you can control and you live with the outcome."
What the Seahawks are forced to live with now is another week with the NFC West crown dangling out there in front of them. How they pick themselves up and dust themselves off will define their season more than the loss to Arizona.
"The Greats - they're not just great because they win all the time. They're great because of how they respond to defeat," says Seahawks receiver Doug Baldwin. "In order for us to be a great team - what we want to do and what we want to accomplish - we got to recover from this the right way, respond to it the right way."
Russell Wilson had his worst game as a professional quarterback against Arizona. He completed 11 of 27 passes for 108 yards. He wasn't looking at what went wrong following Sunday's loss, instead he was focused on getting better in time to face the Rams.
"I think the biggest thing is just moving on and focusing on the next opportunity," Wilon said. "It's a good opportunity with another championship week. You don't want too many championship opportunities to pass you by. So the thing for us is staying focused on what you can control and having a great week of practice."
The final game of the regular season against the Rams would have been meaningless if the Seahawks had knocked off the Cardinals and clinched the West. Instead the game against St. Louis is now the most meaningful of this season.
"What this does," said Pete Carroll, "is it turns all our focus to the next week. And like I told these guys, I was gonna tell them - we have to win that game no matter what anyways, so here we go. We've got to go get this last one and see if we can secure our division. It's another championship ballgame."
The Seahawks have treated every week this season like a championship week. This week it really is.