GLENDALE, Ariz. -- Two little-known players brought an abrupt end to a day of confusion, comebacks and clutch performances in the desert.

Sean Morey blocked Mat McBriar's punt and Monty Beisel scooped up the ball and scored from 3 yards to give the Arizona Cardinals a crazy 30-24 overtime victory over the Dallas Cowboys.

It was the first time in NFL history that a blocked punt for a touchdown ended a game in overtime.

Morey rushed untouched off the left side of the Dallas line to block the kick. Beisel, a backup linebacker, picked up the ball at about the 3 and bowled over the goal line.

McBriar was hurt on the play and had to be carted off the field in the din of a crowd that included the usual large portion of Dallas fans.

The stunning play by two of Arizona's most unheralded players brought a conclusion to a game that began with a 93-yard kickoff return by the Cardinals' J.J. Arrington followed by many moments of confusion, controversy and clutch performances.

Dallas (4-2) scored 10 points in the final 2 minutes of regulation, sending the game into overtime when Nick Folk's 52-yard field goal barely cleared the crossbar as the fourth quarter ended.

Folk was in field-goal range only because a 5-yard offside penalty was called against injured Arizona linebacker Travis LaBoy as he tried to limp downfield. The penalty moved the ball from the 40 to the 35.

That was just one of the weird moments in Arizona's sixth consecutive home victory.

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

Tony Romo, who threw three touchdown passes but fumbled twice, 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 downfield and was called offside.

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

Before the blocked punt, Arizona's biggest play 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.

A disputed call resulted in a 14-point swing late in the first half.

Arizona appeared to go up 14-0 late in the first half when Darnell Dockett slammed into Romo in the Dallas end zone and the ball came loose. Antonio Smith recovered for the Cardinals, but the Cowboys challenged the ruling.

After the review, officials said Romo had tucked the ball away when he fumbled and, by rule, it was an incomplete pass.

The Cowboys went on to score the tying touchdown. Romo threw over the middle to a wide-open Crayton on a 55-yard scoring play and it was 7-7 only 59 seconds before the break.

Arizona rookie Calais Campbell, a backup defensive tackle, signaled for a fair catch on Folk's subsequent "pooch" kickoff. Campbell muffed the kick and Tashard Choice recovered for Dallas on the 27.

Folk's 37-yard field-goal attempt with 13 seconds to go careened off the left upright to ruin Dallas' shot at a late grab for the halftime lead.

The Cowboys also blew an earlier chance to score after Warner fumbled and Anthony Henry recovered for Dallas at the Arizona 25. But on the next play, Bertrand Berry knocked the ball loose from Romo as the quarterback's arm went back to pass. Smith recovered for the Cardinals.