Mackenzie Dern is a Jiu-Jitsu black belt, multiple-time Jiu-Jitsu world champion, and one of the most decorated grapplers to compete in MMA. The Jiu-Jitsu sensation and top undefeated MMA prospect returns to the LFA: Legacy Fighting Alliance Octagon at #LFA24! LFA 24 - Frincu vs. Millender takes place this Friday, October 13th at the Comerica Theatre in Phoenix, Arizona. The event will be televised nationwide on AXS TV and internationally on Esporte Interativo, The Fight Network, and Fight Live