From the latest issue of the Wrestling Observer Newsletter:
Here’s a funny story, probably certain to be denied, but there is actually video of it although for obvious reasons I don’t ever expect the video to surface. Vic Darchinyan, a pretty well known boxer of Armenian descent who has held several world titles, was in a gym with Rousey, who trains judo with a number of Armenians including Karo Parisyan and Manvel Gamburyan. Somehow, this led to him claiming that no woman could ever throw him or armbar him. So they locked up and she launched him with throws one after the other and he had no way of stopping any of them. Then they went to grapple and it was seconds before she armbarred him and his people broke it up right away for fear she could hurt him with the move.
Source (gated): http://www.f4wonline.com/component/content/article/110-wrestling-observer-newsletter/29109-jan-7-2013-wrestling-observer-newsletter-wwe-and-ufc-looking-to-turn-fortunes-around-in-early-2013-ufc-155-title-change-new-japan-tokyo-dome-preview-death-of-emilio-charles-jr-tons-more