San Francisco 49ers' Trenton Cannon, top, is tackled by Arizona Cardinals' Dennis Gardeck during the first half of an NFL football game in Santa Clara, Calif., Sunday, Nov. 7, 2021. (AP Photo/Jed Jacobsohn)

Seattle Seahawks quarterback Russell Wilson (3) stands near an ambulance before it took San Francisco 49ers running back Trenton Cannon off the field after an injury during the first half of an NFL football game at Lumen Field, Sunday, Dec. 5, 2021, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers running back Trenton Cannon is loaded into an ambulance after an injury during the first half of an NFL football game against the Seattle Seahawks at Lumen Field, Sunday, Dec. 5, 2021, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers running back Trenton Cannon is tended to after an injury during the first half of an NFL football game against the Seattle Seahawks, Sunday, Dec. 5, 2021, in Seattle. (AP Photo/John Froschauer)