UFC 159 plays host to the third women's bantamweight bout in UFC history. Highly touted prospects Sara McMann and Sheila Gaff square off on the FX preliminary card.
MMARising.com's pound-for-pound list has McMann ranked 10th and Gaff 13th.
McMann (6-0) is a former Olympian in wrestling. She entered the sport roughly the same time as UFC champion Ronda Rousey, but has elected to go a slower route for her development. She will be the second mother to compete inside the Octagon.
Gaff (10-4-1) has won three in a row. One of her losses comes to featherweight Romy Ruyssen in 2010. She gave up a significant amount of weight in that bout. The German will introduce herself to the world on Saturday.
This is a preview heading in to Saturday's bout.