According to Bengals.com's Geoff Hobson, Andre Smith, who returned to practice on Wednesday, but was limited, sat out of practice on Thursday. Smith missed last week with an ankle injury and was replaced at right tackle by Anthony Collins, who had a solid performance. Collins, next to Bobbie Williams helped Cedric Benson run for over 90 yards in the first half. It wasn't until Williams left the game with a broken ankle that run blocking ability of the right side of the offensive line went down hill, hence Benson's -1 yards in the second half.
Smith is joined on the sidelines by running back Brian Leonard and fullback Chris Pressley.
Running back Cedric Benson came back to action, though, on Thursday, along with cornerback Nate Clements, who is working out on the side of the field.
We'll post both the Bengals' and the Rams' full Thursday practice reports later tonight so stay tuned.