#3. Brock Lesnar vs Seth Rollins - WrestleMania 35
After Roman Reigns was out indefinitely following the tragic announcement of his leukemia, WWE knew that they needed a new face to replace him. Seth Rollins was the go-to Superstar for that as he was already a well-established #2 babyface in WWE.
To coronate him, WWE knew that they had to get him through the 'final boss' - Brock Lesnar. 156 days into his second Universal Championship reign, Brock Lesnar would face the Royal Rumble winner Seth Rollins at WrestleMania 35.
Since it wasn't the main event, Paul Heyman furiously declared that Brock Lesnar wanted to finish his match first and "get out". A premeditated attack against Seth Rollins delayed the start of the match, but once the bell rang, it lasted just 2 minutes and 30 seconds.
Seth Rollins' so-called 'coronation' had him hit Brock Lesnar with a low blow before finishing him with a sequence of stomps. Since it was WrestleMania, fans expected a longer match. They eventually had a "proper" match at SummerSlam later that year, where Seth Rollins would defeat him clean in the main event.
At WrestleMania, however, it was a weird sight to watch Brock Lesnar lose the Universal title in less than three minutes.