Watch Flyweight Champion Demetrious Johnson talk backstage with Megan Olivi about his third round submission victory over Wilson Reis at UFC Fight Night Kansas City.

Watch Demetrious Johnson talk in the Octagon about his third round victory over Wilson Reis at UFC Fight Night Kansas City.

Watch the Fight Night Kansas City post-fight press conference live following the event.

Feel the energy as UFC flyweight champion Demetrious "Mighty Mouse" Johnson and challenger Wilson Reis square off one last time before they fight at the UFC Fight Night Kansas City weigh-ins.

Watch the Fight Night Kansas City official weigh-in on Friday, April 14 at 6pm/3pm ETPT live from Kansas City.

UFC Minute host Lisa Foiles previews some of the best Fight of the Night contenders to look out for at Fight Night Kansas City.

Demetrious Johnson looks to match Anderson Silva's record of 10 consecutive title defenses when he faces off against Wilson Reis on Saturday live and free on FOX.

Six supremely talented mixed martial artists from around the world prepare body and mind for battle at UFC Fight Night on FOX in UFC Road to the Octagon: Johnson vs Reis. Catch the premiere on April 9 at Noon ET/9 am PT on FOX.

Watch Wilson Reis' victory over Hector Sandoval at UFC 201. Reis takes on Demetrious Johnson for the flyweight title at Fight Night Kansas City live on FOX on April 15.

Watch Demetrious Johnson attempt to defend his flyweight title against Wilson Reis live on FOX on April 15. Also on the main card is Rose Namajunas vs Michelle Waterson and Jacare Souza vs Robert Whittaker.

Demetrious Johnson caught up backstage at UFC 209 with Megan Olivi to discuss his upcoming bout against Wilson Reis at Fight Night Kansas City.

Watch the UFC 208 official weigh-in on Friday, Feb. 10 at 6pm/3pm ETPT live from King's Theater in Brooklyn, New York.