Dolphins vs. Cardinals 2012 odds: Arizona favored by a touchdown

The Miami Dolphins head to Arizona on Sunday, as they take on the Arizona Cardinals, who have jumped out to an impressive 3-0 start to the season. Not surprisingly, the Cardinals are favored over the 1-2 Dolphins.

The opening line had the Dolphins as four-and-a-half-point underdogs to the Cardinals, but the lines have shifted, making the Dolphins a seven point underdog headed into Arizona.

Miami's line could change as the week goes on. Starting running back Reggie Bush's status still remains in the air, as Bush was forced from Sunday's overtime loss to the New York Jets with a knee injury. While an MRI revealed no structural damage, his status for Sunday's game in Arizona is still in the air.

If the Dolphins are going to pull off the upset, they'll certainly need their offense to shine, as the Arizona defense has held both Tom Brady and Michael Vick in check the past two weeks.