Keenum appeared to sustain the injury during the Rams’ last drive of the game. After taking a big hit and slamming his head against the ground, Keenum rolled around on the field before slowly getting to his feet with the help of a teammate.
Keenum stayed in the game, fumbling the ball two plays later, which set up a game-winning field goal for the Ravens.
Keenum was making his first start of the season Sunday after the Rams benched Nick Foles. He completed 12 of 36 passes for 136 yards and a touchdown.