7-Eleven will be the major sponsors for WWE SummerSlam this year on Sunday, August 23 in Los Angeles, CA. On a related note, WGN America is currently holding a sweepstakes for SummerSlam on Sunday, August 23 where the winner will receive a trip for two to the show in Los Angeles, CA. You must be 21 years or older to enroll in the contest. The sweepstakes ends on July 30, 2009. For more information, click here.