13x15 - WWE SmackDown

Edge's untimely retirement forces him to relinquish the World Heavyweight Championship. A 20-Man Battle Royal is held to determine who will face Alberto Del Rio for the vacated title in a Ladder Match at Extreme Rules. Rey Mysterio battles Drew McIntyre. Plus, The Corre's Ezekiel Jackson takes on Kofi Kingston, Layla battles Kelly Kelly, and more.