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The Cardinals will start rookie Carson Beck against the Rams on Sunday, their third quarterback in three weeks, after Gardner Minshew II was placed on injured reserve. Beck, a third-round pick, spent the first eight weeks as Arizona's emergency third quarterback, then backed up Minshew against Seattle after the Cardinals traded Jacoby Brissett to Baltimore. Coach Mike LaFleur said Wednesday that Beck will not be fazed by the moment and told him to have fun and let it sling. Minshew needs surgery for a UCL injury to his throwing arm and will miss the rest of the season. Beck will play at State Farm Stadium, where he led Miami over Ole Miss in the CFP quarterfinals. Jonathan Gannon's staff is working with a depleted quarterback room, and the team added Josh Johnson and Joey Aguilar to the active roster. Separately, Chiefs coach Andy Reid said Wednesday that Harrison Butker will remain the kicker for Sunday's road game against the Falcons, despite leading the NFL with seven missed field goals. Butker missed a 51-yarder in last week's 35-12 win over the Jets, and fans booed him afterward. Reid said he will stick with Butker and take it week by week, even though the Chiefs signed Justin Tucker to the practice squad two weeks ago. ESPN reported that special teams coordinator Dave Toub said the Chiefs are confident Butker's technique problems can be corrected.