#1. Kurt Angle
In mid-2002, Kurt Angle was not a happy man.
After losing his hair to Edge at Judgement Day, Angle was on a tear on SmackDown and issued an open challenge to any Superstar in the back. This challenge was answered by a new rookie, one that fans had never seen before.
Meet John Cena's dad HERE
Introducing himself as John Cena, the young Superstar from West Newbury, Mass, was the embodiment of Vince McMahon's ideology of Ruthless Aggression. Unfortunately, the said aggression wasn't quite enough to defeat Angle, as the Olympian beat Cena in his very first match on the WWE main roster.
Despite this loss being a setback, we all know what would happen next, as Cena would bounce back, becoming one of the most popular stars on both SmackDown and RAW and having a truly Hall of Fame worthy career.