Lesnar's opponent will be determined via a 10-man battle royal that is being dubbed a "Cross Brand All-Star Top 10 Battle Royal". The participants for the match include Seth Rollins, Roman Reigns, Rey Mysterio, Braun Strowman, Randy Orton, Sami Zayn, Big E, Cesaro, Bobby Lashley, and Baron Corbin.
As for Lynch, the challenger for her Raw Women's championship will come from a fatal four-way match that includes Alexa Bliss, Naomi, Carmella, and Natalya.
Barring any sort of change of plans, the 2019 SummerSlam will mark the third consecutive year in which Lesnar defends the Universal title at the event. In 2017, he defeated Reigns, Strowman, and Samoa Joe in a fatal four-way, and dropped the belt last year to Reigns.