Dustin Poirier recently shared his two cents on potentially fighting Nate Diaz in the squared circle and explained why he isn't free to compete in boxing matches yet.Poirier is widely considered among the greatest lightweights ever to grace the UFC octagon and has recorded wins over high-profile opponents like Conor McGregor, Max Holloway, Eddie Alvarez, and Anthony Pettis over the course of his decorated career.The Louisiana native called it a career after his rematch against Max Holloway at UFC 318 in July and retired with an impressive 30-10-1NC record. He lost his final fight via unanimous decision.Given Poirier's striking prowess, many have speculated that he may try his hand at boxing. Diaz was among the most prominent fighters to be linked to a fight against Poirier, and the two UFC veterans have also traded shots online over the past few years.In a recent interview with Fox Sports Australia, 'The Diamond' addressed a potential boxing match against Diaz and said:"I would love to whip him [Diaz] up and slap him around."Explaining why he couldn't compete in professional boxing yet, Poirier continued:"When I retired from the UFC, I still had maybe 4–5 fights left on my contract, so I’m not free to just go and box. I can't... Zuffa Boxing, it'll be a mess if they start allowing MMA guys and those under contract to start boxing. I think they want to keep it pure boxing."When Dustin Poirier called out Nate Diaz for boxing match while clearing stance on potential comebackLast month, Dustin Poirier addressed a potential comeback to combat sports and named Nate Diaz as the "one that got away" from him. Poirier also outlined the conditions that would entice him to return.In an X post (via @ChampRDS on X), Poirier called out Diaz for a 12-round boxing match while confirming that "he's done" with fighting:''Zuffa Boxing 12 [rounds], me and Nathaniel, I'd do it. Only 1 more fight I'd take. I'm retired, I'm done, but Nate is one that got away."