Cards' Kyler Murray set for MRI on knee after leaving MNF game on cart 8:34 PM ET Josh WeinfussESPN Staff Writer Close Covered the Cardinals since 2012 Graduate of Indiana University Member of Pro Football Writers of America GLENDALE, Ariz. -- Arizona Cardinals quarterback Kyler Murray was carted off the field with a noncontact knee injury less than 90 seconds into Monday night's game against the New England Patriots . He is scheduled to undergo further testing on Tuesday, including an MRI, but a source told ESPN there is "little doubt that it's torn," referring to the quarterback's ACL. Murray went down after a 3-yard run to the right on the third play of the game. The clock read 13:39 while Murray was attended to by team athletic trainers and doctors. He wasn't touched before he went down. Murray's teammates took a knee around him almost immediately, and coach Kliff Kingsbury was also on the field checking on the star quarterback. QB Kyler Murray suffered a noncontact knee injury on the Cardinals' third offensive play Monday night against the Patriots. Ross D. Franklin/AP The cart took Murray off the field toward the Cardinals' locker room as he sat on the back with a team athletic trainer. ESPN's Lisa Salters reported on the game broadcast that Murray was sobbing as he entered the tunnel on the cart. He was initially listed as questionable to return before being downgraded to out at the end of the first quarter. "It's tough,'' Kingsbury told ESPN's "Monday Night Football'' at the end of the quarter. "He'll be out the rest of the game. That's all I know right now. You hate to see that.'' Backup Colt McCoy entered the game in Murray's place. The 36-year-old McCoy had a 1-1 record as the team's quarterback when Murray was out for two games last month. Editor's Picks Pats lose Stevenson, Parker to injuries on MNF 44m Mike Reiss Murray is a two-time Pro Bowl selection who was the No. 1 overall pick in the 2019 draft out of Oklahoma. The 25-year-old signed a $230.5 million contract during the offseason that could keep him with the franchise until 2028. Murray was playing in his 11th game this season. Coming into Monday's game, he had thrown for 2,359 yards, 14 touchdowns and seven interceptions. The Cardinals have been plagued by injuries this season, particularly on the offense. They're missing four of their starting offensive linemen and lost tight end Zach Ertz for the season, also because of a knee injury. The Associated Press contributed to this report.