#2 John Cena vs Roman Reigns at SummerSlam 2021
The big rumor heading into SummerSlam 2021 is that 16-time world champion John Cena might be returning to WWE. The WWE Universe hasn't seen Cena since he featured in last year's Firefly Fun House match with Bray Wyatt.
Dave Meltzer of Wrestling Observer recently reported that John Cena has been in talks to appear on a SmackDown show in July, just weeks before SummerSlam 2021. This could eventually set up a match between Cena and the current Universal Champion, Roman Reigns:
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"The leading rumor is Roman Reigns vs. John Cena for the Universal title. We do know that as of last week they were in talks with Cena, that were not finalized, to appear on the 7/16 Smackdown show in Houston," Meltzer explained.
Reigns and Cena have feuded in the past, but a feud between the two now would be entirely different. The Tribal Chief's current character is one that has captured the imagination of the WWE Universe, and will likely complement Cena's babyface character.
There's a lot of history between the two which could be incorporated in this storyline. A match between Roman Reigns and John Cena could very well headline SummerSlam 2021.