#1. John Cena "buries" Roman Reigns in a key WWE feud

John Cena and Roman Reigns kickstarted a feud that was supposed to represent the symbolic passing of the torch in WWE. They had a "war of words" in the build to their No Mercy match, where WWE ensured that neither man laid a finger on each other.
The "war of words" was a one-sided beating from the former face of WWE John Cena. Although he was criticized by CM Punk (and fans) for being WWE's golden boy, John Cena made sure to give Roman Reigns similar treatment.
In the promo, John Cena verbally decimated Roman Reigns, who many believe should have been a heel after beating The Undertaker at WrestleMania 33. WWE refused to make that move, and Roman Reigns was humiliated, with John Cena even calling out his inability to cut a convincing promo.
Ultimately, the feud was always set up for Roman Reigns to win, but with the match being underwhelming, this promo remains the most memorable part of the feud. Many WWE fans felt that John Cena was given the free mic to "test" Roman Reigns, and that's what he did. But it was all a part of the storyline.