Arizona (4-2) scored 17 consecutive points, including a pair of touchdown passes by Warner, to go up 24-14 on Neil Rackers' 41-yard field goal with 3:17 left in regulation.

Romo, who threw three touchdown passes but fumbled twice under fierce pressure, connected with Marion Barber on a 70-yard scoring play that cut it to 24-21 with 2 minutes left.

Dallas' defense held, and the Cowboys got the ball at their 32. Romo connected with Patrick Crayton on a 30-yard play to the Arizona 39, where the Dallas quarterback spiked the ball with 4 seconds to play to stop the clock.

LaBoy was far upfield.

"I think we were about 60 yards offsides on the play," Whisenhunt said.

Officials, who had a difficult day all around, huddled for several minutes and even reviewed the play before Folk's tying kick.

The Cowboys scored the last time they had the ball in the first half and on their first possession of the second to take a 14-7 lead.

Romo was sacked three times and had to hurry his throw on several other occasions.

"Today I got hit blindside for the first time in awhile," he said. "But they're good. Their D-line played an outstanding football game. You've got to give them credit. That was, I thought, the difference of the game."

Before the blocked punt, Arizona's biggest play of the game came the next time the Cardinals had the ball and it was third-and-17 on their 33.

Warner's pass was tipped at the line of scrimmage, but the intended receiver, rookie Tim Hightower, still caught it. Hightower powered to the first down, and the Cardinals went on for the tying score.

Larry Fitzgerald's leaping catch between defenders on a 30-yard play led to Warner's 11-yard touchdown pass to Steve Breaston that put Arizona ahead 21-14 with 10:44 left in regulation.