WWE SmackDown Season 9 Episode 21 May 25, 2007 ( Air Date 2007-05-25 ) Genre Reality category. Overview "Edge eagerly waits to see who will challenge him for the World Heavyweight Championship when Batista, Finlay, Kane, and Mark Henry compete in a Fatal 4-Way Match. Plus, Paul London & Brian Kendrick take on William Regal & Dave Taylor, MVP holds a celebration for winning the United States Championship, Matt Hardy battles The Miz, and much more.".