Key Number: 115
For the second straight week the Arizona Cardinals offense surpassed 100 yards rushing, this time without the services of starting running back Andre Ellington.
In his place, Chris Johnson and David Johnson picked up the slack and proved to be a serviceable combination in relief of Ellington.
Chris Johnson tallied 20 carries for 72 yards and while he had a long run of only eight yards, his game-breaking abilities will eventually break through. Meanwhile, David Johnson racked up 42 yards on only five carries and a touchdown.
With David Johnson showing a great deal of explosiveness and versatility over the Cardinals' first two games, he'll likely see more touches as the year goes on, especially if Ellington remains sidelined with a PCL injury.
Key Number: 108
Speaking of David Johnson, the rookie running back made the most of limited touches for the second consecutive game. Last week it was a 55-yard game-clinching touchdown reception and this week it was a 108-yard kickoff return for a touchdown on the game's first play.
Johnson is still being brought along slowly by coach Bruce Arians but it's going to be difficult to limit his touches going forward. Johnson has already proved to be an electric runner with the ball in his hands - whether that's on the ground, through the air or on special teams.
Look for Johnson to become more involved in the Arizona offense and we're still predicting him to be the team's lead back at some point this season.
Key Number: 4
QB Carson Palmer continues to excel this early season and tossed four touchdowns in Sunday's win against Chicago. Palmer now has seven touchdowns over his first two games of the season and shows no signs of slowing down.
Palmer has displayed a tremendous chemistry with his receivers and he's benefited tremendously from Arizona's balanced offensive attack thus far. The Cardinals running game has opened things up through the air and the offensive line has provided Palmer with ample time in the pocket.
Palmer is picking up right where he left off a year ago, and if his health remains intact, Palmer could be in store for a career year.
Key Number: 0
By far the most staggering statistic compiled by the Cardinals in 2015 is zero sacks allowed through two games.
Arizona's offensive line was expected to continue it's upward trend but I doubt many expected its performance to be this good early on - especially without the services of free-agent acquisition Mike Iupati.
While the New Orleans Saints and Chicago Bears don't exactly boast the league's best passing-rushing units, we'll have good idea of how far the Arizona offensive line has come after the next three weeks. The Cardinals face off against the St. Louis Rams, Detroit Lions and Pittsburgh Steelers - all who deploy above average pass-rushing abilities.
Key Number(s): 112 and 3
There's been so much talk about wideouts John Brown and Michael Floyd over the past two seasons that Larry Fitzgerald has almost been forgotten. That's not the case anymore as Fitzgerald totaled 112 receiving yards and three touchdowns against the Bears.
Sunday's 112-yard output was Fitzgerald's seventh 100-yard receiving game over the past three-plus seasons and the three touchdowns was a regular-season career best.
It will be interesting to see how the Cardinals receiving corps evolves over the course of this season and while we still expect Brown to be the team's leading receiving, it's looking like both him and Fitzgerald can surpass 1,000 yards on the year.
Cardinals vs. Bears Breakdown: 5 Key Numbers
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