A Notorious Legacy: 5 Moments That Defined Conor McGregor’s Career

4. Becoming A Champion In 2 Weight Classes

Roughly a year after defeating Jose Aldo for the UFC Featherweight Championship — the Irishman went on to capture the lightweight strap — with a TKO victory over Eddie Alvarez. He is 1 of only 6 fighters in UFC history to win titles in multiple weight classes.

As a 2-division champ, McGregor is part of an exclusive club that includes members like Georges St-Piere, Randy Coutre, and Daniel Cormier. The accomplishment all but ensures McGregor will one day be enshrined in the UFC Hall of Fame one day — if he's able to resolve his current legal matters.

Moreover, winning 2 belts means hardcore McGregor fans can legitimately make the argument that he is the greatest fighter of all-time.