#3 Brock Lesnar shocks the world in New Orleans again
Even before WrestleMania 33 in 2017 happened, a rumor came out from the Wrestling Observer Newsletter that WWE was going to begin a slow build to Brock Lesnar vs Roman Reigns 2 at WrestleMania 34.
Surely enough, Brock Lesnar finally defeated Goldberg and won the Universal Championship while Roman Reigns defeated The Undertaker. Over the next year, Brock Lesnar and Roman Reigns were fully established as the two biggest stars of the company - with nobody kicking out of the F5 or the spear.
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They had their inevitable clash in the main event of WrestleMania 34 and as expected, the crowd didn't react too well to it. It wasn't a bad match by any means, but the outcome seemed pointless. Everyone assumed that the whole build for Lesnar's year-long Championship reign was to give Roman Reigns a WrestleMania coronation again.
Instead, Brock Lesnar won clean, leaving everyone shocked in New Orleans four years after he ended the streak in the same stadium. Reigns failed to beat him in Saudi Arabia a month later (though it was a controversial win) in a steel cage and had a rematch at SummerSlam 2018 where he finally beat him in a 5-6 minute match. Lesnar had no use for winning at WrestleMania 34 other than Vince McMahon wanting his reign to cross CM Punk's 434-day WWE Championship reign.