UFC officials confirmed the match-up on Thursday.
Waldburger (16-7) has fought six times in the UFC, amassing a 4-2 record. He’s coming off a submission win over Nick Catone at on Dec. 15 and is looking to extend his winning streak to two.
Amagov (12-2-1) made his way to the UFC through the Strikeforce organization. He made his promotional debut on April 6, winning a unanimous decision over Chris Spang. The Chechen hopes to remain unbeaten in the UFC.
UFC 166: Velasquez vs. Dos Santos 3 takes place on Oct. 19 at the Toyota Center in Houston and is headlined by the third bout between heavyweight champion Cain Velasquez and former titleholder Junior dos Santos.