The Rams (4-7) have now dropped four in a row, losing to the Bengals in Cincinnati by a final of 31-7. Nick Foles, who started the first nine games, returned after being benched last week and threw three interceptions.
Case Keenum was limited in practice after a head injury late in the loss at Baltimore.
Foles went 30 of 46 for 228 yards. He has seven touchdowns and nine interceptions this season. Wide receiver Tavon Austin had a team-high 63 yards on four runs. He also caught six passes for 33 yards. Todd Gurley was held to 19 yards on nine carries.
The Rams offense, ranked at the bottom of the league, was held to 13 or fewer points for the third straight game.