PHOENIX — Days after The Biggest Fight of the Summer, WWE COO Triple H broke into WWE Main Event live via satellite to deliver a major announcement: new WWE World Heavyweight Champion Brock Lesnar and former champion John Cena will square off in a SummerSlam  rematch at Night of Champions!

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U.S. Champion Sheamus def. Curtis Axel (Non-Title Match)

Curtis Axel went to war with United States Champion Sheamus, while Cesaro joined new main Event announcing team Michael Cole and Byron Saxton at the announce table. After slapping Sheamus around, an infuriated Celtic Warrior retaliated with smash-mouth offense. With Axel still reeling, the champion put him away with a vicious Brogue Kick. After the bout, Cesaro smugly tossed Sheamus’ title to the champion before sauntering up the entrance ramp.

John Cena invoked his rematch clause against WWE World Heavyweight Champion Brock Lesnar

It's official. Brock Lesnar will take on John Cena at Night of Champions on Sept. 21 on pay-per-view! WWE COO Triple H broke the news live via satellite during WWE Main Event, exclusively on WWE Network. According to the COO, Cena invoked his rematch clause earlier in the day and The Authority granted the match against The Beast Incarnate.

NIGHT OF CHAMPIONS MATCH PREVIEW

Nikki Bella def. Emma

Still fresh off her sisterly betrayal, Nikki Bella took the fight to Emma. With a brutal right hand — similar to the one she hit her sister, Brie, with at SummerSlam — Nikki stunned Emma. The malicious Diva followed it up with a backbreaker for the pinfall.

Titus O'Neil & Heath Slater vs. Los Matadores

Los Matadores brought reinforcements for their corner in the form of La Vaquita (Hornswoggle in a cow outfit). After avoiding two near pinfall attempts, Slater picked up the victory for his team. Following the bout, Slater looked to dish out some punishment to the diminutive mascots, but El Torito (Spanish for "little bull") and La Vaquita (Spanish for "little cow") got the better of Slater, sending him crashing from the ring onto his tag partner, The Gator.

Big Show def. Erick Rowan

From the start, big Erick Rowan proved to be a formidable challenger for The World's Largest Athlete. With Mark Henry in his corner, Big Show did his best gain momentum back after a tough start. Rowan nearly scored a victory with a massive body slam like the one he delivered on Raw, but Show managed to stay alive and deliver a punishing KO Punch for the win.

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