Her reign atop the division began with a ferocious victory over Carla Esparza in early 2015 .
Jedrzejczyk has since carved a wide swathe of destruction across the strawweight ranks with convincing title defenses over Jessica Penne , Valerie Letourneau , and Claudia Gadelha .
Her reign atop the division began with a ferocious victory over Carla Esparza in early 2015 , and Jedrzejczyk has since carved a wide swathe of destruction across the strawweight ranks with convincing title defenses over Jessica Penne , Valerie Letourneau , and Claudia Gadelha .