Jackie Nava and Alys Sanchez pose for photos during a weigh-in on August 10, 2018 in Mexico City, Mexico. Mariana 'Barby' Juarez of Mexico will fight against Terumi Nuki of Japan for the WBA Bantamweight World Championship and Jackie Nava of Mexico will fight Alys Sanchez of Venezuela for the WBA Bantamweight International Championship on August 11.