WWE decided to switch from the Allegiant Stadium in 2019 to the MGM Grand Garden Arena in 2021. This change was announced via an email sent out on Thursday after they learned of their move. There was no reason given, but the show will keep its original date.
SummerSlam 2021 brought in over 50,000 fans, with a capacity that can expand to 71,835. The Garden Arena can only hold 17,000 fans. Double or Nothing 2019 brought in 11,000 people last year.