In a 5-round middleweight championship bout in the main event, Dricus Du Plessis and Khamzat Chimaev meet Saturday at UFC 319 in Chicago.

In a 3-round middleweight bout on the main card, Jared Cannonier and Michael Page meet Saturday at UFC 319 at United Center in Chicago.

In a 3-round featherweight bout on the main card, Lerone Murphy and Aaron Pico meet Saturday at UFC 319 at United Center in Chicago.

SpaceX is preparing to launch two missions this week - a NASA space station resupply mission and the mysterious Space Force X-37B space plane.