The fight was announced on UFC Canada’s twitter page.
Calderwood herself is returning from a knee injury that sidelined her through much of 2015.
These two women usually compete at 115 pounds, but will be fighting at 125 pounds in a one-time-only in the UFC’s first female flyweight fight.
Welcome back to The Crossfire.
Calderwood last fought at UFC Fight Night 72 winning a decision against Cortney Casey.
…thanks for all the positive support but will get back to everyone 💗👊 ☎️
— Jo Jo Calderwood (@DRkneevil) April 28, 2016
Letourneau is currently ranked #5 in the strawweight division while Calderwood is 11th.
— UFC Canada (@UFC_CA) April 28, 2016
UFC Fight Night 89 takes place June 18th at the TD Place Arena in Ottawa, Ontario. Rory MacDonald (18-3-0) and Stephen Thompson (12-1-0) battle in the main event.
— Valerie Letourneau (@ValTroubleMMA) April 28, 2016