Ultimate Fighting Championship (UFC) Light Heavyweight Champion Jon Jones, as filmed in the last year's Jackson's Mixed Martial Arts (MMA) documentary "The Proving Ground," does some proving of his own -- by knocking out his sparring partner inside the cage.
In the above outtake, "Bones" doesn't let a little thing like an unconscious teammate stop him from training; however, because as his coach explains, you gotta finish the round, even if there's some involuntarily planking going on next to you. (Though he probably should have checked on him to "get some fans.")
The question is, can Jones replicate this kind of performance this weekend?
That's where he'll defend his 205-pound title against Rashad Evans, who knows a thing or two about mixing it up with Jones in Albuquerque. They're scheduled to main event UFC 145: "Jones vs. Evans" on April 21, 2012 at the Philips Arena in Atlanta, Georgia.
To get all the gory details on their epic grudge match click here.