Dustin Porier refused to fight Colby Covington at UFC 309. This was reported by Colby himself.
"I was offered a fight with Dustin and he was even promised a double fee, but he still turned it down. A couple months ago, they tried to raise his fee for a fight on the New York card as the second most important event."
As a reminder, UFC 309 will take place on November 16 and will be headlined by a Jones vs. Miocic fight