Missouri quarterback Sam Horn went down with a devastating injury on his first snap of Thursday nights game against Central Arkansas, remaining sidelined for the entirety of the Tigers 61-6 victory.His injury comes amid an ongoing battle for the starting quarterback position withPenn State transfer Beau Pribula.Horn, a redshirt junior, came onto the field during the second series of the game with the Tigers already leading 6-0. He ran the ball 6 yards on his first play before appearing to take a hit to the lower body.WATCH ON THE FOX ONE APP START YOUR 7-DAY FREE TRIAL TODAYHorn remained on the ground as teammates attempted to help him up. He was eventually helped off the field by medical staff."[Im] very disappointed and sad with the injury to Sam and the injury to Blake Craig, and those two things are really disappointing, and we'll see tomorrow what the extent of those injuries are," head coach Eliah Drinkwitz told the media after the game.CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM"So, it kind of takes the damper a little bit off the win."Drinkwitz would not speculate when asked if Horns injury was expected to be aseason-ending injury. He said the team would know more after an MRI on Friday. Horn was spotted on the sideline in a full leg brace and walking on crutches after the game.TRAVIS KELCE, TAYLOR SWIFT MAKE FIRST PUBLIC APPEARANCE AS NEWLY ENGAGED COUPLE AT CINCINNATI-NEBRASKA GAMEHorns injury ultimately secured Pribulas claim as starting quarterback. The two signal-callers were still battling it out for the No. 1 spot at kickoff.Pribula finished 23-of-28 passing for 283 yards and two touchdowns, adding another 65 yards and two scores on the ground."I don't think he stepped up. I think he was just continuing to play the way he was playing," Drinkwitz said of Pribulas performance."I thought he did a nice job handling the situation. He knew he was going to play the first half, we knew we were going to run that formation pretty early in the game. Just disappointing that [Horn] got injured. It was a heck of a run."The Associated Press contributed to this report.Follow Fox News Digitals sports coverage on X, and subscribe to the Fox News Sports Huddle newsletter.