The end-of-year card on December 29 at the MGM Grand Garden Arena should include the top-10 ranked flyweights after a verbal agreement.
Cariaso (14-3) has three consecutive victories while Moraga (12-1) made his UFC debut in August, knocking out veteran Ulysses Gomez in the first round at UFC on Fox 4.
The main event of UFC 155 features Junior dos Santos defending his heavyweight title in a rematch with Cain Velasquez.
- Mixed Martial Arts
- Martial Arts