VIDEO: Man learns hard lesson from Ronda Rousey

Ronda Rousey is hot after successfully defending her UFC bantamweight title last week. But she's making headlines this week after a 2011 YouTube video was re-posted and then we went viral.

In the video, YouTube host Aaron Tru tells Rousey he doesn't believe she has the "strength" to compete with a man. Even if he's a white belt in judo, which is her specialty. Rousey wasn't the UFC champion she is today, but that didn't mean much.

Watch how he learned the hard way that she's not afraid of taking on a man.