Injury-plagued 49ers playing hard to finish off down season

San Francisco 49ers cornerback Ahkello Witherspoon (23) celebrates his interception against the Arizona Cardinals during the second half of an NFL football game, Saturday, Dec. 26, 2020, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Francisco 49ers tight end George Kittle (85) is hit by Arizona Cardinals center Lamont Gaillard (53) during the second half of an NFL football game, Saturday, Dec. 26, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers fullback Kyle Juszczyk dives in for a touchdown as Arizona Cardinals strong safety Budda Baker (32) defends during the second half of an NFL football game, Saturday, Dec. 26, 2020, in Glendale, Ariz. (AP Photo/Rick Scuteri)