49ers Defensive Grades
The 49ers’ defensive line created a fair amount of quarterback pressure with their front four rushers, and sacked Chicago QB Mitchell Trubisky three times, although they allowed the quarterback to scramble away from danger on a few key plays. On the ground, San Francisco limited the Bears’ RB duo of Jordan Howard and Tarik Cohen to just 3.2 rushing yards per attempt.
MIKE linebacker Fred Warner had a mixed day, as the rookie struggled to finish plays and bring defenders to the ground. WILL linebacker Lee made a number of mistakes, but also led the 49ers with 12 tackles. While Lee has failed to lock down a starting job in 2019, he should be a key backup piece for the team going forward. Meanwhile, SAM linebacker Mark Nzeocha saw limited defensive snaps throughout the day.
The 49ers’ young secondary flew around the field making plays and laying down big hits, particularly strong safety Marcell Harris, who is full of fire but continues to play a bit out of control. Defensive back Tarvarius Moore showed his lack of experience at the cornerback position as he gave up a few big plays, but recovered by forcing a fumble after allowing what should have been a game-ending reception by wideout Allen Robinson. Nickel corner K’Waun Williams was a force against the run, particularly during the beginning of the contest. And veteran cornerback Richard Sherman — despite the lack of passes thrown in his direction — finally saw some action after sprinting across the field to defend Harris on the Bears’ sideline, but was ejected from the game for his efforts.