sentences:  ****Steelers–Raiders game was flexed out for the Rams-Bears game.For the 2019 season, the NFL decided to break with a long-standing tradition of the reigning Super Bowl champion hosting the Kickoff game, (occurring every year since 2004, except 2013).The Packers and Bears was the Kickoff game instead, to celebrate the 100th season of the NFL, the 100th season of the Chicago Bears, and the NFL's oldest rivalry.