UFC Middleweight Champion Anderson “The Spider” Silva is stepping up to the Light Heavyweight divison to go toe to toe with James “The Sandman” Irving.  Both of these fighters will be bringing tremendous KO power to the octagon on July 19th 2008 at the Palms Casino Resort in Las Vegas.  Silva is said by many to be the best pound for pound fighter in the world.  Irvin on the other hand has just tied the all time fastest KO in UFC history with his KO of Houston Alexander.  Check out this highlight video that shows both of these amazing fighters in action. Watch out for those flying knees! Someone could lose some teeth in this one.