グレート・アメリカン・バッシュ
The main feud on the SmackDown! brand was between The Great Khali, Batista, and Kane, with the three battling over the World Heavyweight Championship. At the previous pay-per-view, , then-World Heavyweight Champion Edge defeated Batista in a "Last Chance" match to retain the World Heavyweight Championship. On the July 6 edition of "SmackDown!", SmackDown! General Manager Theodore Long announced that Edge would be defending the World Heavyweight Championship against Kane at The Great American Bash. The next week on "SmackDown!", The Great Khali issued an open challenge for a match at The Great American Bash, which was accepted by Batista. Later that night, Edge legitimately injured his left pectoral muscle after Kane, who was disguised as a character, attacked Edge during his Mardi Gras celebration. On the July 20 edition of "SmackDown!", Edge was forced to vacate the World Heavyweight Championship due to his legit injury. Theodore Long then announced that there would be a 20-man Battle Royal later that night to determine a new World Heavyweight Champion. Khali ended up winning the Battle Royal by last eliminating Kane and Batista. That same night, Kane faced off against Batista to determine Khali's opponent for The Great American Bash, which ended in a no-contest after Khali interfered. Long finalized that both Kane and Batista would end up facing Khali for the championship at The Great American Bash.