The Rams placed Dolac (knee) on injured reserve Tuesday.
Dolac was injured in the regular-season finale against the Cardinals on Sunday and has an injury to his PCL, according to Nate Atkins of The Athletic. The rookie linebacker appeared in all 17 regular-season contests for Los Angeles, logging 25 tackles (16 solo) as a staple on special teams. He will now be required to miss the entire postseason.