Seattle Seahawks running back Alex Collins (36) is tackled by San Francisco 49ers defensive tackle Chris Jones (93), nose tackle Glenn Dorsey (90) and linebacker Michael Wilhoite (57) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Jan. 1, 2017.
Seattle Seahawks running back Alex Collins (36) is tackled by San Francisco 49ers defensive tackle Chris Jones (93), nose tackle Glenn Dorsey (90) and linebacker Michael Wilhoite (57) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Jan. 1, 2017. Tony Avelar AP
Seattle Seahawks running back Alex Collins (36) is tackled by San Francisco 49ers defensive tackle Chris Jones (93), nose tackle Glenn Dorsey (90) and linebacker Michael Wilhoite (57) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Jan. 1, 2017. Tony Avelar AP