New Japan Pro Wrestling (NJPW) Star Okada Kazuchika was Backstage on Summerslam, also Shinsuke Nakamura and KUSHIDA were also at there. Jushin 'Thunder' liger, who participated in the NXT Takeover Brooklyn was also present.
https://www.youtube.com/watch?v=LbFsl43oLp0
Fake Tickets of Summerslam sold
There were some fake tickets sold in the year Summerslam event, Some fans were reportedly turned away because there tickets were fake some were even escorted out of the building.