The promotion announced the featherweight pairing on Tuesday evening. UFC 227 takes place at the Staples Center in Los Angeles on Aug. 4 and is headlined by a bantamweight championship rematch between T.J. Dillashaw and Cody Garbrandt. Sayles vs. Moraes will headline the UFC Fight Pass portion of the preliminary card.
Sayles punched his ticket to the UFC with a first-round technical knockout of Yazan Hajeh on Episode 2 of the Contender Series on June 19. The 24-year-old Alliance MMA product owns a 7-1 career mark that includes six triumphs via knockout or technical knockout.
A four-time veteran of World Series of Fighting, Moraes debuted in the Octagon at UFC Fight Night 122, where he suffered a third-round submission defeat against Zabit Magomedsharipov on Nov. 25. The 27-year-old Brazilian is 9-2 as a professional overall.