ESPN was first to report the matchup. UFC Sacramento takes place at the Golden1 Center in Sacramento, Calif., and streams on ESPN+. A headliner for the card has not been announced.
Calvillo is 5-1 thus far during her Octagon tenure. Most recently, the 31-year-old outpointed Cortney Casey at UFC on ESPN 1 on Feb. 17. Calvillo, who recently revealed that she was leaving Team Alpha Male, is 8-1 as a professional, with five triumphs coming inside the distance.
A former Invicta champion, Souza has kicked off her UFC career with victories over Alex Chambers and Sarah Frota in her first two Octagon appearances. “The Brazilian Gangster” is 13-1 as a pro, with her lone setback coming in a five-round loss to Angela Hill at Invicta FC 17.