Fisher had said Tuesday that Dahl was having some additional tests done on the knee after he left Monday night's game against Seattle and did not return.
“The big thing with the report we got back from the doctor was that Harvey’s going to miss some time," Fisher said. "[I] don’t know, a couple weeks, perhaps, with an MCL.”
Shelley Smith replaced Dahl against the Seahawks, and will step in for Dahl while he's out. Smith has started six games in his career, including two in place of Dahl after he suffered a season-ending arm injury in 2012. So far this season, Smith has spent time alternating with guard Chris Williams on the left side.
On a short week with little recovery time, the Rams had a lengthy injury report Wednesday, though only Dahl's appears to be anything too serious.
“We have some guys that did not practice today that’ll probably practice tomorrow," Fisher said. "Some may not practice until Friday."
Here's the full rundown:
Full participation: RB Benny Cunningham (ankle)