WWE SummerSlam 2021: Ranking the build-up to all 10 matches on the card

#4 WWE SummerSlam 2021: AJ Styles and Omos vs. RK-Bro (RAW Tag Team Championship)

"Kid, you've earned my respect."It really happened!🛴🐍 #RKBro #WWERaw @RandyOrton @SuperKingofBros pic.twitter.com/CuPTfWJUEW

— WWE (@WWE) August 18, 2021

The most exciting RAW match at SummerSlam, RK-Bro's Tag Team Championship tussle, could be special. Fans are desperate to see Riddle and Randy Orton go on an extended run as a team. The Viper's return got their feud with AJ Styles and Omos going, following weeks of attacks on the King of Bros.

Even after Orton came back, there was a compelling narrative over whether or not RK-Bro would get back together. They eventually did, as we head into SummerSlam with a high-profile Tag Team Championship match. The buildup could have been better if Randy Orton had returned earlier, but it is still above everything else on RAW.

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#3 WWE SummerSlam 2021: Roman Reigns vs. John Cena (Universal Championship)

#SummerSlam is going to be EPIC.WWE Universe, are you #TeamRoman or #TeamCena???#SmackDown @WWERomanReigns @JohnCena @HeymanHustle pic.twitter.com/Q0qYBV4RFc

— WWE (@WWE) August 14, 2021

Roman Reigns vs. John Cena has had an interesting buildup on the road to SummerSlam. It got slightly convoluted when Finn Balor entered the picture. He was set to sign the contract to face Reigns at SummerSlam before Cena swooped in at the last minute. But that was not enough to build such a huge match.

Enter last week's promo battle. John Cena and Roman Reigns took several verbal jabs at each other, mentioning the likes of Nikki Bella and Dean Ambrose, among others. That spiced up the feud between both megastars and bumped it up on this list, without much mention of Cena going after his record-breaking 17th world title.