Kyle Shanahan has shared his thoughts on the challenges of facing the Seahawks defense. The 49ers coach discussed what makes this defense difficult to face.

Further information on Shanahan's comments can be found through Sports Illustrated. They have published details of his thoughts on the Seahawks defense.

Sports Illustrated is the source for more information on this topic, providing insight into the challenges posed by the Seahawks defense from the perspective of the 49ers coach.