San Francisco 49ers' Jeremy Kerley (17) runs against Arizona Cardinals' Tony Jefferson during the first half of an NFL football game in Santa Clara, Calif., Thursday, Oct. 6, 2016.
San Francisco 49ers' Jeremy Kerley (17) runs against Arizona Cardinals' Tony Jefferson during the first half of an NFL football game in Santa Clara, Calif., Thursday, Oct. 6, 2016. Marcio Jose Sanchez AP
San Francisco 49ers' Jeremy Kerley (17) runs against Arizona Cardinals' Tony Jefferson during the first half of an NFL football game in Santa Clara, Calif., Thursday, Oct. 6, 2016. Marcio Jose Sanchez AP