With Young on young D, Rivera's Washington in 1st, relevant
San Francisco 49ers quarterback Nick Mullens (4) manages to elude the tackle of Washington Football Team defensive tackle Jonathan Allen (93) during the second half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers quarterback Nick Mullens (4) manages to elude the tackle of Washington Football Team defensive tackle Jonathan Allen (93) during the second half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Dec. 13, 2020 07:27 PM EST
Washington Football Team quarterback Dwayne Haskins (7) throws as San Francisco 49ers defensive end Kerry Hyder (92) defends during the second half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Washington Football Team quarterback Dwayne Haskins (7) throws as San Francisco 49ers defensive end Kerry Hyder (92) defends during the second half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Dec. 13, 2020 06:45 PM EST
Washington Football Team quarterback Alex Smith (11) walks to the field for the start of the second half of an NFL football game against the San Francisco 49ers, Sunday, Dec. 13, 2020, in Glendale, Ariz. Washington Football Team quarterback Dwayne Haskins replaced Smith for the start of the second half. (AP Photo/Rick Scuteri)

Washington Football Team quarterback Alex Smith (11) walks to the field for the start of the second half of an NFL football game against the San Francisco 49ers, Sunday, Dec. 13, 2020, in Glendale, Ariz. Washington Football Team quarterback Dwayne Haskins replaced Smith for the start of the second half. (AP Photo/Rick Scuteri)

Dec. 13, 2020 06:45 PM EST
Washington Football Team head coach Ron Rivera, left, greets San Francisco 49ers head coach Kyle Shanahan prior to an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Washington Football Team head coach Ron Rivera, left, greets San Francisco 49ers head coach Kyle Shanahan prior to an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Dec. 13, 2020 04:59 PM EST
Washington Football Team defensive end Chase Young (99) runs back a fumble recovery for a touchdown against the San Francisco 49ers during the first half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Washington Football Team defensive end Chase Young (99) runs back a fumble recovery for a touchdown against the San Francisco 49ers during the first half of an NFL football game, Sunday, Dec. 13, 2020, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Dec. 13, 2020 06:23 PM EST