Packers and Bears reverse roles in NFL's 100th season opener

FILE - In this Aug. 15, 2019, file photo, Green Bay Packers quarterback Aaron Rodgers looks on from the sideline during the first half of a NFL football preseason game against the Baltimore Ravens, in Baltimore. The Packers and Aaron Rodgers take on the Bears and Khalil Mack on Thursday, Sept. 5. (AP Photo/Gail Burton, File)

FILE - In this Dec. 14, 1941, file photo, Chicago Bears' Hugh Gallarneau (8) stumbles as a Green Bay Packers defender attempts a diving tackle during a football game in Chicago. The NFL's most ancient rivals open the league's 100th season in Chicago, Thursday, Sept. 5, 2019. (AP Photo/File)

FILE - In this June 12, 2019, file photo, Chicago Bears linebacker Khalil Mack works out at the NFL team's football training facility in Lake Forest, Ill. The Bears play the Green Bay Packers on Thursday, Sept. 5. (AP Photo/Nam Y. Huh, File)

FILE - At left, in a May 22, 2019, file photo, Chicago Bears head coach Matt Nagy smiles during NFL football practice in Lake Forest, Ill. At right, in an Aug. 8, 2019, file photo, Green Bay Packers head coach Matt LaFleur walks onto the field before an NFL preseason football game against the Houston Texans, in Green Bay, Wis. The NFL's most ancient rivals open the league's 100th season with a flipped script: A year after the Bears went to Green Bay to open the season with a new look under coach Matt Nagy, the Packers are trying to do the same at Chicago under coach Matt LaFleur, a drastic change for quarterback Aaron Rodgers going against Khalil Mack and the Bears' defense. (AP Photo/File)