Jim Harbaugh said during Monday’s press conference that Kareem Walker, a freshman running back out of New Jersey, wasn’t dressed on Saturday because he’s working through something academically.
Harbaugh: Kareem Walker is "working through some things academically." He wasn't dressed Saturday.
— Nick Baumgardner (@nickbaumgardner) September 5, 2016
Walker was the No. 4 RB in the 2016 class out of high school.