SEATTLE (AP) – Yep, Mike Holmgren was right. The Seattle Seahawks did score in the second half, thanks to the legs of Shaun Alexander.

Ahead 10-9 at halftime, Alexander scored twice in just 30 seconds early in the third quarter, and Seattle cruised to a 37-12 romp over winless Arizona on Sunday.

Seattle was scoreless in the second half in its first two games, prompting Holmgren to guarantee earlier this week that the Seahawks would score in the second half sometime this season.

Alexander continued his impressive track record against the Cardinals at home. Alexander rushed for 135 yards and three touchdowns in the first three quarters, and his 1-yard TD run on the first play of the fourth gave Seattle a 31-12 lead.

Alexander finished with 140 yards on 22 carries, the 24th 100-yard game of his career, tying him with Chris Warren for the most in team history. The last two seasons against Arizona, Alexander rushed for 135 and 154 yards at home against the Cardinals.

Matt Hasselbeck finished 20-of-31 for 242 yards, and Darrell Jackson had eight catches for 125 yards for Seattle (2-1).

Meanwhile, the day got progressively worse for Arizona (0-3), a trendy preseason pick to win the NFC West.

Down 10-6 with 3:56 left in the first half, Arizona lost quarterback Kurt Warner to a right groin injury.

Facing a third-and-9 at the Seattle 32, Warner was pressured, and ran from the pocket to his left. He attempted to throw across his body to fullback Obafemi Ayanbadejo, but the pass fell incomplete. After he threw, Warner began limping back toward the center of the field before laying down and grabbing at his right leg. Trainers helped Warner off the field, and he was replaced by Josh McCown on Arizona’s next possession.

Warner was 8-of-13 for 105 yards and was sacked once. McCown didn’t fare better, finishing 10-of-23 for 97 yards and an interception on the last play. Arizona held a 175-170 advantage in total yards at halftime, but gained only 91 in the second half. Seattle finished with 447.

Arizona also lost nose tackle Russell Davis (biceps), linebacker Eric Johnson (left hamstring), and cornerbacks David Macklin (left hamstring) and Antrel Rolle (left knee) to injuries in the second half.

Neil Rackers kicked field goals of 54, 39, 50 and 39 for Arizona. The Cardinals have just one offensive touchdown all season.

Seattle received the second half kickoff and promptly went 80 yards in 3:09s. The Seahawks clipped off at least 12 yards on every play but one. Hasselbeck was 4-of-4 for 48 yards before Alexander scored from the 1.

On Arizona’s ensuing possession, McCown misfired on his first two attempts. On third-and-10, Seattle safety Michael Boulware blitzed, jarring the ball from McCown. Defensive tackle Rocky Bernard fell on the batted-around fumble and rolled to the Arizona 1 before being touched down. Alexander plunged in on the next play, giving the Seahawks a 24-9 lead.

Alexander set up his final score with a 46-yard rush, spinning out of a tackle and reversing field before finally being tackled at the Arizona 7. He scored three plays later from the 1. Alexander had a 25-yard TD run in the first quarter, and Josh Brown kicked field goals of 33 and 47 yards.