T.J. Dillashaw has been tabbed to replace Francisco Rivera and meet Hugo Viana next month at UFC on FOX: Henderson vs. Melendez. UFC officials announced the change on Friday.
The card takes place April 20 from San Jose. The bout will likely be part of the Facebook prelims.
Dillashaw (7-1) will join teammates Chad Mendes and Joseph Benavidez on the card. He is coming off a victory over Issei Tamura earlier this month.
Viana (7-0) is a perfect 2-0 inside the Octagon and was a semifinalist on The Ultimate Fighter: Brazil.