As was just reported, the United States Title Match between A.J. Styles and Kevin Owens ended in controversy on SmackDown Live. Backstage, SmackDown Commissioner Shane McMahon assured Kevin Owens that he would get a rematch at the upcoming SummerSlam pay-per-view. Owens demanded a more competent referee and SmackDown General Manager Daniel Bryan proposed that Shane McMahon himself should be the referee for the match at SummerSlam.
So it will be Kevin Owens challenging A.J. Styles for the United States Championship at SummerSlam with SmackDown Live Commissioner Shane McMahon as the Special Guest Referee.