The UFC is working on booking a fight between Jessica Eye and Cynthia Calvillo as the headliner for its June 13 card, ESPN's Brett Okamoto reports, citing sources.

The location of the UFC Fight Night event has yet to be determined.

Eye owns a career record of 15-7 and has won four of her last five fights. She suffered the lone defeat against Valentina Shevchenko in a women's flyweight title fight last June and responded by beating Viviane Araujo by unanimous decision in December.

Calvillo is 8-1-1 in her career. Her only loss came via unanimous decision against Carla Esparza in 2017. Since then, she's defeated Poliana Botelho and Cortney Casey and most recently earned a majority draw against Marina Rodriguez in December.