Dustin Poirier is grateful for what he learned from fighting. | Getty/UFC Dustin Poirier is paying tribute to the sport that changed his life. “The Diamond” enjoyed a memorable sendoff at UFC 318 last ...

A few days removed from his final fight at UFC 318, Dustin Poirier took some time to reflect on the end of his incredible career.

Dustin Poirier posted a “letter to the game” several days after his farewell fight at UFC 318 to thank the sport for what it taught him.