Biggest winners, losers from 49ers Week 13 loss vs. Ravens

Loser: 49ers Run Defense

If San Francisco was greatly effective against Lamar Jackson’s passing efforts, the same surely can’t be said of defensive coordinator Robert Saleh’s unit being the same against the Ravens rushing attack.

Overall, Baltimore managed 178 yards of rush offense, averaging 4.7 yards per carry against a 49ers defense which has been vulnerable against the run for much of the year.

Jackson and running back Mark Ingram regularly found success attacking the middle of the 49ers defense, too, regularly picking up gains of 7, 8 or even more yards per attempt. While the Niners adequately adjusted later in the game somewhat, much of the damage was already done by that point.

To make things worse, San Francisco’s defenders regularly bit on the read-option plays Jackson was executing, frequently tackling Ingram while Jackson sprinted with the ball for many a chunk play.

Play action proved to be costly for the 49ers defense, too, set up mostly by the Ravens success running the ball.

Jackson ran for 105 yards on the day and averaged 6.3 yards per attempt. That’s down from his previous 7.1 yards-per-carry average, though, so maybe it’s a minor San Francisco victory in that regard.