The promotion’s Spanish branch recently announced the bantamweight pairing. UFC on Fox 22 takes place at the Golden 1 Center in Sacramento, Calif., and is headlined by a strawweight showdown pitting Paige VanZant against Michelle Waterson.
A native of Guadalajara, Mexico, Aldana is 7-2 as a professional, with all of her victories coming inside the distance. The 28-year-old went 4-1 during her Invicta FC stint, coming up short against Tonya Evinger in a bid for bantamweight gold in July 2015. Aldana enters her debut on the strength of back-to-back first-round TKO triumphs over Faith Van Duin and Jessamyn Duke.
Smith, meanwhile, last appeared at UFC 198, where she suffered a first-round TKO defeat to Cristiane Justino in a 140-pound catch-weight affair. Smith is 2-3 in the Octagon, with wins against Rin Nakai and Duke.