By now, you're likely aware that Chris Johnson is out for an extended period of time -- likely the entire season -- and rookie David Johnson is now in line for the lion's share of the carries with Andre Ellington unlikely to play this week as well.

Johnson is somehow still available in almost 40% of ESPN leagues. If he's out there in your league, get him. Now.

For those fortunate to have already obtained Johnson, you may be initially scared off because of the matchup against the St. Louis Rams. While the Rams are second in terms of our Adjusted Defensive Rushing NEP per play metric, they have struggled a bit recently. Over the previous four weeks, they've allowed opposing running backs to rush for an average of 115 rushing yards and 0.5 rushing touchdowns.

With his proven ability to produce big plays -- he's scored eight total touchdowns on the season -- combined with the additional workload he will see, Johnson should have no problem producing a nice stat line in Week 13.