Kamaru Usman and Rose Namajunas retained their titles to cap off a memorable UFC 268 event this past Saturday night at Madison Square Garden. With Usman heading into his second lap of the welterweight division, and Dana White seemingly shunning Carla Esparza once again in terms of the top contender at 115 pounds, who could both champs face in their next title defenses? That question is addressed on this week's On To the Next One. In addition, future matchups were discussed for the challengers Colby Covington and Zhang Weili, Marlon Vera, Shane Burgos, Justin Gaethje and Michael Chandler following their all-time classic, Chris Barnett after his incredible finish of Gian Villante, and more with MMA Fighting's Mike Heck and Alexander K. Lee. Follow Mike Heck: @MikeHeck_JR Follow Alexander K. Lee: @AlexanderKLee Subscribe: http://goo.gl/dYpsgH Check out our full video catalog: http://goo.gl/u8VvLi Visit our playlists: http://goo.gl/eFhsvM Like MMAF on Facebook: http://goo.gl/uhdg7Z Follow on Twitter: http://goo.gl/nOATUI Read More: http://www.mmafighting.com Learn more about your ad choices. Visit podcastchoices.com/adchoices