Chiasson (8-3 MMA, 6-3 UFC) and Santos (14-7 MMA, 4-4 UFC) are set to meet at UFC Fight Night on July 1, which takes place at the UFC Apex in Las Vegas. Broadcast plans have not been revealed.
MMA Junkie verified the matchup with multiple people close to the situation, who requested anonymity because the promotion has yet to make an official announcement.
Holly Holm def. Yana Santos at UFC on ESPN 43: Best photos
Irene Aldana def. Macy Chiasson at UFC 279: Best photos
Chiasson, 31, will look to bounce back from a rare upkick body shot knockout loss against Irene Aldana at UFC 279 in September. The Fortis MMA product is 2-2 in her past four fights but will look to begin another run toward title contention.
Santos, 33, enters the event on the first losing skid of her career. She’s dropped fights to Holly Holm and Aldana, but prior to that beat fellow contender Ketlen Vieira.
The latest lineup for UFC Fight Night on July 1 includes:
Sean Strickland vs. Abus Magomedov
Melissa Gatto vs. Ariane Lipski
Khusein Askhabov vs. Joanderson Brito
Max Griffin vs. Michael Morales
Abdul Razak Alhassan vs. Brunno Ferreira
Luana Carolina vs. Ivana Petrovic
Grant Dawson vs. Damir Ismagulov
Ismael Bonfim vs. Benoit Saint-Denis
Blagoy Ivanov vs. Alexandr Romanov
Macy Chiasson vs. Yana Santos