The Cardinals returned home to face their third NFC West opponent, the St. Louis Rams.  QB Kurt Warner drew first blood against his former team, as completed a 12-yard TD strike to WR Larry Fitzgerald for the only score of the first quarter.  However, in the second quarter, it was all St. Louis. Kicker Jeff Wilkins got a 26-yard field goal, QB Marc Bulger completed a 9-yard pass to WR Torry Holt, and Wilkens got a 47-yard field goal as time ran out on the first half.  In the third quarter, Wilkens helped the Rams increase their lead with a 21-yard field, which would be the only score of the third quarter.  In the fourth quarter, even a valiant effort for a comeback, the only score that Arizona could muster was a 6-yard TD run by RB Edgerrin James.  After a Bulger fumble deep in St. Louis territory while trying to run out the clock set up the Cardinals for an easy chip shot field goal to win, Warner fumbled a snap and St. Louis recovered to seal the victory. Adding to the fact that Warner had 3 interceptions during the game, the Cardinals would get their very first loss in their new stadium as they fell to 1-2. A few days after the game, ESPN reported that rookie QB Matt Leinart would be starting the next game. The next day, Arizona's head coach announced that the club would be sticking with the veteran Warner.
Question: What was Wilkens longest field goal?
Answer: 47-yard