Middleweights Alan Belcher and Vitor Belfort are now officially signed to UFC 153. The fighters will compete in Rio de Janeiro, Brazil on October 13.

Both Belcher and Belfort believe they are in the running to face UFC middleweight champion Anderson Silva. The two fighters took to Twitter in the recent days to put the match together.

Also, Ultimate Fighter: Brazil winner Rony Jason will face Sam Sicilia on the card. Jason claimed the featherweight title, while Sicilia was part of The Ultimate Fighter: Live season.

UFC 153 currently features Jose Aldo defending his UFC featherweight title against Erik Koch, and Quinton "Rampage" Jackson taking on Glover Teixeira.

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