SummerSlam 2026 Night 1 is loaded with championship clashes, personal rivalries and career-defining battles. Undisputed WWE Championship: CM Punk (c) vs Cody Rhodes(Courtesy: WWE.com)Few rivalries on the card carry as much emotional weight as CM Punk versus Cody Rhodes. Also Read: WWE SummerSlam 2026 Night 1 – Preview, start time & where to watchHell in a Cell: Oba Femi vs Brock Lesnar(Courtesy: WWE.com)This trilogy has been evenly split, with Oba Femi and Brock Lesnar trading victories at WrestleMania 42 and Clash in Italy, respectively. Night 1 of SummerSlam 2026 offers an excellent balance of championship matches, grudge contests and showcase bouts. When and where will SummerSlam 2026 take place?