The following is from WWE.com:
SummerSlam has long been recognized as WWE’s marquee summer event, and this year should be no different as Superstars from both RAW and SmackDown! come to the MCI Center in Washington, D.C.
The first match made for SummerSlam is a gigantic blockbuster as WWE Champion John Cena will defend his championship against Chris Jericho.
Meanwhile, Shawn Michaels shocked WWE fans across the world by turning on friend, tag team partner Hulk Hogan, eventually blasting him with Sweet Chin Music.
HBK would later challenge Hogan to a match at SummerSlam, a match that Hogan has accepted.
Also, the World Heavyweight Championship will be on the line when Batista defends his championship against JBL. JBL beat Batista at The Great American Bash, winning by disqualification. Of course, Batista kept the title.
Now, JBL will try and leave SummerSlam a champion once again.
Randy Orton has his own goal for SummerSlam: defeat Undertaker. After failing to add Undertaker to his list of fallen legends, the Legend Killer demanded a rematch for Aug. 21, and Undertaker was quick to accept.
In addition, Edge will face Matt Hardy in the most personal of matches. Also, Eugene and Kurt Angle will go one-on-one — this time without a time limit. Remember, Eugene still has Angle 1996 Olympic Gold Medal
Back on the SmackDown! side, Rey Mysterio will face Eddie Guerrero, with the winner gaining sole custody of Dominick. Guerrero has revealed he is the biological father of Dominick and wants him back. Mysterio will fight to keep him.
Also, the United States Championship will be on the line when Orlando Jordan defends the championship against Chris Benoit, who has promised to make Jordan tap out.