San Francisco 49ers cornerback Richard Sherman, left, greets Seattle Seahawks outside linebacker Shaquem Griffin during warmups before an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers cornerback Richard Sherman looks around CenturyLink Field as he steps out for warmups before an NFL football game against his former team, the Seattle Seahawks, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers cornerback Richard Sherman, left, greets Seattle Seahawks wide receiver Doug Baldwin during warmups before an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers cornerback Richard Sherman, right, shakes hands with Seattle Seahawks head coach Pete Carroll, left, before an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers quarterback Nick Mullens passes during warmups before an NFL football game against the Seattle Seahawks, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers cornerback Richard Sherman, center, huddles with teammates before an NFL football game against the Seattle Seahawks, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers quarterback Nick Mullens passes against the Seattle Seahawks during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers cornerback Richard Sherman lines up against the Seattle Seahawks during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers quarterback Nick Mullens passes under pressure from Seattle Seahawks middle linebacker Bobby Wagner during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

Seattle Seahawks wide receiver Jaron Brown is tackled by San Francisco 49ers defensive back Marcell Harris, right, as he scores a touchdown during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers running back Jeff Wilson is tackled by Seattle Seahawks middle linebacker Bobby Wagner, left, as he rushes during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

San Francisco 49ers wide receiver Dante Pettis (18) scores a touchdown ahead of Seattle Seahawks free safety Tedric Thompson (33) during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks wide receiver Doug Baldwin breaks a tackle attempt by San Francisco 49ers cornerback Richard Sherman, left, during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. Baldwin managed to break the tackle and gain yardage. (AP Photo/Elaine Thompson)

Seattle Seahawks wide receiver Doug Baldwin (89) catches a pass for a touchdown ahead of San Francisco 49ers defensive back K'Waun Williams, right, during the first half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

Seattle Seahawks running back Rashaad Penny, right, runs for a touchdown against the San Francisco 49ers during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks running back Rashaad Penny, right, runs for a touchdown ahead of San Francisco 49ers strong safety Antone Exum (38) and cornerback Ahkello Witherspoon, left, during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers wide receiver Dante Pettis, left, is greeted by fullback Kyle Juszczyk, right, after Pettis scored a touchdown against the Seattle Seahawks during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks wide receiver Jaron Brown, (18) celebrates with wide receiver David Moore (83) after Brown caught a pass for a touchdown during the second half of an NFL football game against the San Francisco 49ers, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks wide receiver Jaron Brown, center, makes a catch for a touchdown between San Francisco 49ers cornerback Richard Sherman, left, and strong safety Antone Exum, right, during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks wide receiver Jaron Brown, center, celebrates with wide receiver David Moore, left, and offensive tackle Duane Brown, right, after catching a pass for a touchdown during the second half of an NFL football game against the San Francisco 49ers, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

Seattle Seahawks quarterback Russell Wilson, left, greets wide receiver Jaron Brown, right, after passing to Brown for a touchdown against the San Francisco 49ers during an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks quarterback Russell Wilson, center, scrambles against the San Francisco 49ers during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks head coach Pete Carroll reacts on the sideline during the second half of an NFL football game against the San Francisco 49ers, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

Seattle Seahawks middle linebacker Bobby Wagner, left, runs with defensive end Frank Clark (55) after intercepting a pass and running for a 98-yard touchdown against the San Francisco 49ers during the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/Elaine Thompson)

San Francisco 49ers cornerback Richard Sherman (25) stands on the field as former teammates, the Seattle Seahawks, back right, huddle late in the second half of an NFL football game, Sunday, Dec. 2, 2018, in Seattle. (AP Photo/John Froschauer)

Seattle Seahawks wide receiver Doug Baldwin, right, hugs San Francisco 49ers cornerback Richard Sherman, left, after they traded jerseys following an NFL football game, Sunday, Dec. 2, 2018, in Seattle. The Seahawks won 43-16. (AP Photo/Elaine Thompson)