Patrick Peterson got his first two interceptions of the season, returning the second one 30 yards for a touchdown to make it 24-14. Moments later, Austin Davis fumbled and Antonio Cromartie returned it 14 yards for a score as Arizona outscored the Rams 21-0 in the fourth quarter for a 31-14 victory.
The Cardinals have the best record in the NFL.
Davis completed 17 of 30 for 216 yards and a TD with two interceptions and a lost fumble.
On Peterson’s second interception, the ball bounced off the hands of the Rams’ Kenny Britt. Peterson caught it and raced to the end zone for the score. On St. Louis’ next possession, Kareem Martin hit Davis and the ball came free as he tried to pass. Cromartie picked it up and ran in for the score to put Arizona up 31-14 with 3:58 to play.
Arizona’s Carson Palmer left with a knee injury and on the next series, rookie Drew Stanton threw a 48 yard touchdown pass that put the Cardinals in front at 17-14 midway through the 4th quarter.