Cardinals head coach Steve Wilks announced Monday that the 21-year-old Rosen will start at quarterback going forward, starting Sunday for the Cards' home game vs. the division rival Seattle Seahawks.
Rosen saw his first regular-season NFL action late in yesterday's 16-14 loss to the Chicago Bears. With just under 5 minutes to play, Rosen was brought in to replace veteran QB Sam Bradford, who was responsible for two interceptions and a fumble on the Cardinals' previous three possessions. Facing immense pressure from the Chicago defense, Rosen completed three of his first five passes but threw an interception on fourth and 5 from the Bears' 45-yard line with less than 2 minutes to play.
The Cardinals got the ball back with 43 seconds left, but Rosen was sacked on the game's final play. Several plays earlier, he threw an interception that was returned for a touchdown, but that play was negated by a Bears offsides penalty.
The loss dropped the Cardinals to 0-3 on the season.
The 6-foot-4, 218-pound Rosen threw 59 touchdowns and 26 interceptions during his three seasons at UCLA. He was a Freshman All-American and the Pac-12 Freshman Offensive Player of the Year in 2015, and a Second-Team All-Pac-12 selection last season when he threw 26 TDs and 10 interceptions.
Rosen is the first quarterback the Cardinals selected in the first round since they took USC's Matt Leinart, also with the 10th overall pick, in 2006.
Rosen is a native of Manhattan Beach, California and was the top-rated quarterback in the nation coming out of St. John Bosco High School in Bellflower, California.