COLUMBIA, Mo. — Missouri's plans for an in-game quarterback competition between Beau Pribula and Sam Horn went off the rails quickly during Thursday's season opener.
Pribula, as expected, started the game with the thinking that he'd play the entire first half and Horn would get the second. But Horn checked into the game during the first half for something of a wildcat play, tucking the ball for a 6-yard carry.
Then came the problem: Horn got up and went back down on the field, receiving attention from trainers who then helped him to the sideline. He appeared to be struggling with his right leg.
After a few minutes in the sideline injury tent, trainers helped Horn to the locker room. He was later spotted standing in a stadium tunnel on crutches with his leg in a full brace and ruled out in the third quarter.
The severity of his injury was not immediately clear, but it carries significant implications for Mizzou's 2025 season. True freshman Matt Zollers was elevated to the No. 2 quarterback spot with Horn in the locker room, and Pribula became the starter by default.
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Tigers coach Eli Drinkwitz will address Horn's injury, if anything is known, after the game.
In today’s 10 AM “Ten Hochman” video, Ben Hochman gets excited about Mizzou’s opener tonight and discusses WR Kevin Coleman! Plus, a happy birthday shoutout to Jason Priestley! And as always, Hochman picks a random Cards card out of the hat!
Photos: Missouri Tigers win 61-6 against Central Arkansas in season opener

Missouri Tigers cornerback Nick Deloach Jr. (24) high fives fans as he runs onto the field before a game at the University of Missouri against Central Arkansas at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers head coach Eliah Drinkwitz reacts to a play during the second half of a game at the University of Missouri against Central Arkansas at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri fans in the student section cheer and wave pom poms during the second half of a game against Central Arkansas at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers wide receiver Marquis Johnson (2) is tackled by Central Arkansas Bears defensive back Dillon Williams (3) right before the end zone during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri fans wave a pom pom and cheer from an upper level section during the second half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Young Missouri fans watch the jumbotron during the second half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers safety Santana Banner (15) and Missouri Tigers safety Caleb Flagg (4) tackle Central Arkansas Bears running back Jalen Washington (20) during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers linebacker Josiah Trotter (40) and Missouri Tigers defensive end Damon Wilson II (8) tackle Central Arkansas Bears quarterback Luther Richesson (5) during the second half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers wide receiver Kevin Coleman Jr. (3) embraces Missouri Tigers defensive end Darris Smith (19) before running onto the field before a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers quarterback Beau Pribula (9) is tackled by Central Arkansas Bears defensive end Deorius Cobbs (30) and Central Arkansas Bears defensive back Jalarrion Andrews (32 during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri quarterback Beau Pribula (9) celebrates a touchdown during the first half of a game against Central Arkansas on Thursday, Aug. 28, 2025, on Faurot Field at Memorial Stadium in Columbia, Mo.

Missouri tight end Brett Norfleet celebrates his touchdown catch during the first half of a game against Central Arkansas on Thursday, Aug. 28, 2025, on Faurot Field at Memorial Stadium in Columbia, Mo.

Missouri Tigers quarterback Sam Horn (21) is helped off the field after an apparent injury during the first half of a game at the University of Missouri against Central Arkansas at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers quarterback Beau Pribula (9) runs down the field with the ball as Central Arkansas Bears defensive back Jalarrion Andrews (32) watches during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers wide receiver Marquis Johnson (2) leaps into the end zone for a touchdown as Central Arkansas Bears defensive back L.J. Hewitt (0) runs after him during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers quarterback Beau Pribula (9) runs the ball as /Missouri Tigers cornerback Toriano Pride Jr. (2) pushes Central Arkansas Bears defensive back DaMari Smith (14)during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers linebacker Josiah Trotter (40) celebrates tackling Central Arkansas Bears running back Landen Chambers (0) during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers head coach Eliah Drinkwitz shakes hands with Central Arkansas Bears head coach Nathan Brown after winning 61-6 at a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers defensive lineman Keagan Trost (79) is caught in a pile-on 1 yard away from the end zone during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers quarterback Beau Pribula (9) runs with the ball for a touchdown during the first half of a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers linebacker Dante McClellan (22) rolls onto the end zone and tosse the ball as he scores a touchdown during the second half of a game against Central Arkansas at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers head coach Eliah Drinkwitz applauds as he walks down the field after a play during the second half of a game against Central Arkansas at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.

Missouri Tigers head coach Eliah Drinkwitz looks around after shaking hands with Central Arkansas Bears head coach Nathan Brown after winning 61-6 at a game at the University of Missouri at Faurot Field at Memorial Stadium in Columbia, Mo., on Thursday, Aug. 28, 2025.