Daniels first left the game late in the second quarter after a sack by the Bulldogs' Jalen Carter.
The play happened with 2:08 left in the second quarter. Daniels was corralled and held up in the air by Carter, a potential All-American defensive lineman and a player who CBS announcer Gary Danielson called the probable top non-QB pick in next year's NFL Draft.
Daniels was visibly frustrated as he was helped slowly off the field by LSU's medical staff. Daniels then limped into the blue medical tent on the Tigers' sideline.
Daniels returned to the field for LSU's last drive of the first half and led the Tigers offense to a field goal. He didn't stay to watch the half-ending field goal try, slowly limping to the locker room.
Daniels injured his ankle in the fourth quarter of last week's loss at Texas A&M and wore a boot after the game.
Garrett Nussmeier came into the game on the first drive of the third quarter.
This article originally appeared on Lafayette Daily Advertiser: LSU football QB Jayden Daniels leaves SEC Championship Game with injury