#2 Brock Lesnar
Brock Lesnar made his debut on the WWE main roster in March 2002 as a heel. The Beast Incarnate was skyrocketed to the main event scene. Lesnar won the 2002 King of the Ring tournament after defeating Rob Van Dam - earning the undisputed WWE Championship shot at SummerSlam 2003.
Brock went on to defeat the champion - The Rock clean at the event, thus becoming the youngest ever world champion in WWE.
Edited by Anthony Akatugba Jr.