Cardinals (4-0) at Rams (2-2)
When: 7:20 p.m. TV: NFL Network
Line: Cardinals by 112
Fast fact: Arizona's Larry Fitzgerald has a reception in 121 consecutive games, the second-longest active streak behind Atlanta's Tony Gonzalez (183).
Lowdown: The Cardinals have made the transition back to Kevin Kolb as the starting quarterback, and the continuity should help going forward. Make no mistake, though, this team is dependent on its defense. Except for the Week 3 cruise past the Eagles, the victories have been nail-biters. Dolphins rookie Ryan Tannehill passed for 431 yards against Arizona last Sunday, but veteran safety Kerry Rhodes' interception set up the winning field goal in overtime. Productive linebacker James Laurinaitis and the Rams are coming off a solid effort in a victory against Seattle. And they have a hot field goal kicker in Greg Zuerlein.
Prediction: Cardinals 21-16