Seattle Seahawks fans cheer during an NFL football game against the Oakland Raiders at Wembley stadium in London, Sunday, Oct. 14, 2018.

Fans tailgate outside prior to an NFL football game between the Oakland Raiders and Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks fans cheer during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

A general view of the pre game show prior to an NFL football game between the Oakland Raiders and Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks quarterback Russell Wilson (3) and Oakland Raiders quarterback Derek Carr (4) speak after an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks cornerback Justin Coleman (28) dives to catch Oakland Raiders wide receiver Seth Roberts (10) during an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks quarterback Russell Wilson (3) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders defensive back Obi Melifonwu (20) runs the ball during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders defensive back Obi Melifonwu (20) celebrates with linebacker Marquel Lee (55) during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks wide receiver Tyler Lockett (16) is tackled during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

The Oakland Raiders huddle prior to an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks running back Chris Carson (32) pushes his way through opponents during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks head coach Pete Carroll looks on from the sideline during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders quarterback Derek Carr (4) hands off the ball to running back Marshawn Lynch (24) during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders head coach Jon Gruden looks on from the sideline during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders fans hold up their flags during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks running back Chris Carson (32) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders running back Keith Smith (41) reaches for the ball during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders wide receiver Dwayne Harris (17) runs the ball past Seattle Seahawks cornerback Shaquill Griffin (26) during an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks wide receiver Tyler Lockett (16) celebrates during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks celebrate during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders quarterback Derek Carr (4) throws the ball during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks defensive back Bradley McDougald (30) and Oakland Raiders wide receiver Amari Cooper (89) are seen in action during an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks quarterback Russell Wilson (3) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks tight end Tyrone Swoopes (46) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks wide receiver David Moore (83) and wide receiver Jaron Brown (18) celebrate during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks running back Chris Carson (32) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks and Oakland Raiders fans unite during an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks defensive tackle Jarran Reed (90) tackles Oakland Raiders quarterback Derek Carr (4) during an NFL football game on Sunday, October 14, 2018 at Wembley stadium in London.

Seattle Seahawks wide receiver Doug Baldwin (89) runs the ball during an NFL football game against the Oakland Raiders on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiders running back Marshawn Lynch (24) runs the ball during an NFL football game against the Seattle Seahawks on Sunday, October 14, 2018 at Wembley stadium in London.

Oakland Raiderettes visit Wembley Stadium on Wednesday, Oct 10, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Household Cavalry Mounted Regiment at the Hyde Park Army Barracks on Thursday, Oct 11, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Household Cavalry Mounted Regiment at the Hyde Park Army Barracks on Thursday, Oct 11, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Household Cavalry Mounted Regiment at the Hyde Park Army Barracks on Thursday, Oct 11, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Holy Rood Primary School in Watford on Thursday, Oct. 11, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Household Cavalry Mounted Regiment at the Hyde Park Army Barracks on Thursday, Oct 11, 2018. (Dave Shopland/NFL)

Virgin Atlantic Crew wait for the Seattle Seahawks to arrive at London's Heathrow airport on Thursday. (Sean Ryan/NFL)

Oakland Raiderettes visit the Holy Rood Primary School in Watford on Thursday, Oct. 11, 2018. (Dave Shopland/NFL)

Oakland Raiderettes visit the Holy Rood Primary School in Watford on Thursday, Oct. 11, 2018. (Dave Shopland/NFL)

Russell Wilson of Seattle works out after arriving in London on Thursday. (Sean Ryan/NFL)

Seattle Seahawks head coach Pete Carroll laughs during practice on Thursday. (Sean Ryan/NFL}

Seattle Seahawks head coach Pete Carroll talks to the media after practice on Thursday. (Sean Ryan/NFL}

Shaquem Griffin (left) and Shaquill Griffin talk to the media after practice on Thursday. (Sean Ryan/NFL)

The Oakland Raiders cheerleaders are seen during a tour of London on Friday, October 12, 2018. (Dave Shopland/NFL)

The Oakland Raiders cheerleaders are seen during a tour of London on Friday, October 12, 2018. (Dave Shopland/NFL)

Fans pose for a photo during the Oakland Raiders Fan Rally at the Admiralty Pub in Trafalgar Square in London on Friday, October 12, 2018. (Andrew Fosker/NFL)

Oakland Raiders quarterback Derek Carr (4) and wide receiver Jordy Nelson (82) as the Oakland Raiders arrive at Heathrow Airport in London on Friday, October 12, 2018. (Dave Shopland/NFL)

A general view of the Oakland Raiders Fan Rally at the Admiralty Pub in Trafalgar Square in London on Friday, October 12, 2018. (Andrew Fosker/ NFL)

Seattle Seahawks Community day with London school children at the Grove Hotel in Chandler's Cross, Watford, England, Friday, Oct. 12, 2018. (Sean Ryan/NFL)

Seattle Seahawks Community day with London school children at the Grove Hotel in Chandler's Cross, Watford, England, Friday, Oct. 12, 2018. (Sean Ryan/NFL)

Seattle Seahawks Community day with London school children at the Grove Hotel in Chandler's Cross, Watford, England, Friday, Oct. 12, 2018. (Sean Ryan/NFL)

Oakland Raiders head coach Jon Gruden speaks during the team press conference at Hilton London Wembley Hotel in London on Friday, October 12, 2018. (Dave Shopland/ NFL)

Oakland Raiderettes Cheerleaders visit Wembley stadium for rehearsal on Saturday. (Dave Shopland/NFL)

Oakland Raiders player arrive on stage during the Oakland Raiders NFL UK Live at The Holiday Inn on Saturday, October 13, 2018. (Dave Shopland/NFL)

Russell Wilson of Seattle enters the room at the Seattle Seahawks Fan Forum on Saturday. (Sean Ryan/NFL)

Seattle Seahawks cornerback Shaquill Griffin (26) signs a fans Seahawks helmet at the Seattle Seahawks Fan Forum on Saturday. (Sean Ryan/NFL)