WWE SummerSlam Night 2 Results(Courtesy: WWE.com)Kevin Owens defeated Sami Zayn, Finn Balor & Gunther – Fatal four-way No. The marquee showdown saw World Heavyweight Champion Roman Reigns defend the title against his former Shield brother, Seth Rollins. What transpired in the main event of Night 2 of SummerSlam 2026? Roman Reigns defeated Seth Rollins to retain the World title in the main event of Night 2 of SummerSlam. What is the next PLE after WWE SummerSlam 2026?