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Anderson Silva must be retiring. At least, in his mind, anyway. The former UFC middleweight champion has reportedly "disassembled" his training camp in Rio de Janeiro and removed himself from the UFC 212 fight card in June.

Silva was expected to face Kelvin Gastelum on the card, but Gastelum was pulled for a positive marijuana test by USADA. Now, without an opponent, Silva is done.

"I really wanted to fight in Brazil, my country, but it's not going to happen," Silva said via MMAJunkie. "I want to apologize for this. I really wanted to fight here, but it didn't happen. I think I was hurt in this, but that's it."  

Gastelum was pulled from the fight on April 6, and Silva has still not gotten an opponent, but remains listed on the UFC.com fight card.

Silva said last week if he didn't get an interim title shot against Yoel Romero on the card, he was hanging up his gloves.

"I stayed here for a long time for training," Silva said on MMA Hour. "This is not my fault for Gastelum to go out of the fight. This is not my problem. My problem is training hard for fight in Brazil for my fans. What happens to my fans now? What happens to the people who paid to see my fight in Brazil? This is the second time this happened. I'm tired of this."  

Gastelum, meanwhile, accepted his 90-day suspension on Monday retroactive to March 18 and had his win over Vitor Belfort overturned. He vowed to never fight in Brazil again.