ジェフ・ハーディー
The main rivalry heading into Extreme Rules from the SmackDown brand was between Edge and Jeff Hardy over the World Heavyweight Championship. After Edge retained the championship against Jeff Hardy at Judgment Day, Theodore Long, the SmackDown general manager, announced on the May 22 episode of "SmackDown" that, due to Matt Hardy's interference in the title match at Judgment Day, Jeff Hardy was to receive a rematch against Edge, to be contested under an Extreme Rule, with the stipulation being chosen by winner of the match between the two later in the night; Hardy won the match, and chose a ladder match, which requires the competitors in the match to climb a ladder to obtain the title belt suspended over the ring in order to win.