Rams left tackle Jake Long suffered a concussion today against the 49ers and has been ruled out for the rest of the game.
Long was injured in the third quarter on a helmet-to-helmet collision with teammate Zac Stacy. Long stayed down and seemed to be in pain, although he did walk off the field under his own power.
Long’s departure means that both teams are playing without their starting left tackles, as 49ers left tackle Joe Staley suffered a knee injury.