Rivera misses Washington practice to begin cancer treatments
FILE - Washington defensive coordinator Jack Del Rio arrives for practice at the team's NFL football training facility, Thursday, Aug. 20, 2020, in Ashburn, Va. Washington Football coach Ron Rivera missed his team's first game-week practice Tuesday as he began treatment for a form of skin cancer. As planned, defensive coordinator Jack Del Rio stepped in and ran practice ahead of Washington's game against the Philadelphia Eagles. (AP Photo/Alex Brandon, File)

FILE - Washington defensive coordinator Jack Del Rio arrives for practice at the team's NFL football training facility, Thursday, Aug. 20, 2020, in Ashburn, Va. Washington Football coach Ron Rivera missed his team's first game-week practice Tuesday as he began treatment for a form of skin cancer. As planned, defensive coordinator Jack Del Rio stepped in and ran practice ahead of Washington's game against the Philadelphia Eagles. (AP Photo/Alex Brandon, File)

Sep. 08, 2020 01:46 PM EDT
Washington head coach Ron Rivera watches his team during an NFL football practice at FedEx Field, Monday, Aug. 31, 2020, in Washington. (AP Photo/Alex Brandon)

Washington head coach Ron Rivera watches his team during an NFL football practice at FedEx Field, Monday, Aug. 31, 2020, in Washington. (AP Photo/Alex Brandon)

Aug. 31, 2020 03:17 PM EDT