The term "once in a generation" is a term used to describe something truly special. It implies that you will only see this level of greatness once in your life. MMA fans have been lucky enough to see two fighters who've achieved this level of respect from the MMA community.
The first is Anderson Silva, with the other being the greatest welterweight in MMA history, Georges "Rush" St-Pierre.
The French-Canadian had his first Octagon appearance all the way back at UFC 46 and, outside of a bout with Dave Strasser, competed the rest of his career under the Zuffa banner.
It's been a long road filled with a who's-who of MMA veterans for St-Pierre to become the best 170-pound fighter in the history of MMA. Here's a small glance of where St-Pierre has come from and where the UFC champion can still go.