After 18 pro fights over more than 12 years, Rosi Sexton , considered one of the pioneers of women’s MMA, has announced her retirement from the sport. Sexton, 36, brought the news via her website. In an emotionally honest blog post titled “Where next?,” Sexton said, “Right now, there’s a new chapter waiting.” The native of Manchester, England, a bantamweight, sees the end come on the heels of a three-fight losing streak, including decision losses in both her fights in the UFC. Two weeks ago, Sexton returned to Cage Warriors in England and was knocked out by highly regarded prospect Joanna Jedrzejczjk in the second round. “The bottom line – right now I have more to offer the sport outside the cage than inside it,” Sexton said in the post. “I don’t want to give up on being the fighter I believe I’m capable of; but there are bigger things going on.