Has Dustin Poirier confirmed a move up to welterweight?

Dustin Poirier's last fight ended in a knockout defeat.

UFC: Plenty at stake for Dustin Poirier when he takes on Dan Hooker

McGregor injures leg, loses fight against Poirier at UFC 264

Dustin Poirier to get second shot at UFC title

Dustin Poirier agrees to title fight against Charles Oliveira at UFC 269

UFC 236 results: Dustin Poirier, Israel Adesanya claim interim gold in twin instant classics

Dustin Poirier calls for new UFC weight division ahead of next fight - Irish Mirror Online

Dustin Poirier Announces Plans For Welterweight Move After KO Loss At UFC 291: 'Ok, I'll Move Up

Poirier, Gaethje prepared for possible brutal rematch at UFC 291

UFC fighter Dustin Poirier's Battle Cutting Weight - Men's Journal