 Undefeated UFC lightweight champion Khabib Nurmagomedov has agreed to face interim champ Justin Gaethje on Oct. 24. UFC President Dana White announced Nurmagomedovs return to mixed martial arts Tuesday. Nurmagomedov 28-0 holds the longest active unbeaten streak in MMA, and he became the UFCs lightweight champion in April 2018 by defeating Al Iaquinta for the vacant belt. He has defended his title just twice, but he defeated interim lightweight champ Dustin Poirier by submission last September in his most recent fight. 