Video: Watch UFC 170's Sara McMann make her UFC debut against Sheila Gaff

Sara McMann looks to become the first fighter to defeat UFC women’s bantamweight champion Ronda Rousey when they collide in Saturday’s UFC 170 headliner. Watch the Olympian’s promotional debut.

After a run with Invicta FC and ProElite, McMann, an Olympic silver-medal wrestler, met the well-rounded Sheila Gaff at UFC 159 in April 2013.

Check out the full fight above.

And catch Rousey (8-0 MMA, 2-0 UFC) and McMann (7-0 MMA, 1-0 UFC) on pay-per-view from Las Vegas’ Mandalay Bay Events Center on Saturday.

For more on UFC 170, check out the UFC Rumors section of the site.