#2. Brock Lesnar vs. John Cena (WWE SummerSlam 2014)
A multi-time WWE Champion, Brock Lesnar quickly set his eyes on reclaiming the top prize in WWE after returning to the promotion in 2012.
He received his opportunity at the 2014 WWE SummerSlam pay-per-view event when he challenged John Cena for the WWE World Heavyweight Championship.
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The match between the two icons is infamous for being the most one-sided WWE World Heavyweight Championship main event in history.
After a quick opening flurry from the champion, Brock Lesnar methodically dominated John Cena.
The Beast hit Cena with suplexes that added up into double digits. Brock Lesnar followed this with an F5 to capture the WWE World Heavyweight Championship for the fourth time in his career.
#1. Brock Lesnar vs. The Undertaker (WWE WrestleMania XXX)
Arguably Brock Lesnar's most significant victory in his entire career came at WrestleMania XXX in New Orleans, Louisiana against The Undertaker.
Heading into the match, The Deadman was undefeated on the grandest stage of them all with 21 consecutive victories at WrestleMania since 1991.
The Streak had become synonymous with WrestleMania and had perhaps become even bigger than the event itself. Many in the WWE Universe expected The Streak to remain forever.
However, this all changed at WrestleMania XXX. After hitting The Undertaker with three F5s, Brock Lesnar defeated The Deadman to break The Streak at 21-1.
The stunned silence at the Superdome in New Orleans after the referee counted three is one of the most memorable and infamous moments in WWE history.
While the actual match itself was nothing to write home about, the finish, reaction, and aftermath define "must-see" television.