Jeremy Stephens landed a right hand flush on Marcus Davis' chin during round three of their UFC 125 affair back in January 2011. 

Davis didn't move. 

The result was brutal, as Davis was immediately rendered unconscious. However, he wasn't saved by the referee before Stephens added a little something for good measure.

Watch the full sequence below, courtesy of the UFC's official YouTube channel. 

Stephens returns to action Saturday, Feb. 24, at UFC on Fox 28, where he faces Josh Emmett in the night's main event in Orlando, Florida.