NFL September 5, 2023 4:38 pm Previewing the Lions, Chiefs 2023 NFL season opener The NFL is finally back, and the reigning champion Kansas City Chiefs host the Detroit Lions to kick off the season. US & World Videos 0:53 NFL announces slate of 2024 international games 0:47 5 Things to know about Reggie Bush 0:40 Aaron Donald announces retirement 0:56 Tracking the biggest NFL free agency moves in 2024 0:42 Eagles' Jason Kelce retires after 13-season career