Bears join Raiders in London 2 days before game
Oakland Raiders quarterback Derek Carr attends a training session during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oakland Raiders quarterback Derek Carr attends a training session during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oct. 04, 2019 08:22 AM EDT
Chicago Bears' outside linebacker Khalil Mack, 52, takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Chicago Bears' outside linebacker Khalil Mack, 52, takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Oct. 04, 2019 12:17 PM EDT
Oakland Raiders Darren Waller attends a press conference during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oakland Raiders Darren Waller attends a press conference during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oct. 04, 2019 08:21 AM EDT
Chicago Bears' outside linebacker Khalil Mack, 52, takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Chicago Bears' outside linebacker Khalil Mack, 52, takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Oct. 04, 2019 12:13 PM EDT
Oakland Raiders head coach Jon Gruden attends a press conference during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oakland Raiders head coach Jon Gruden attends a press conference during the media day at The Grove Hotel, Watford, England, Friday, Oct. 4, 2019. The Oakland Raiders are preparing for an NFL regular season game against the Chicago Bears in London on Sunday. (Steven Paston/PA via AP)

Oct. 04, 2019 08:21 AM EDT
Chicago Bears' quarterback Chase Daniel takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Chicago Bears' quarterback Chase Daniel takes part in an NFL training session at the Allianz Park stadium in London, Friday, Oct. 4, 2019. The Chicago Bears are preparing for an NFL regular season game against the Oakland Raiders in London on Sunday. (AP Photo/Matt Dunham)

Oct. 04, 2019 12:08 PM EDT