Combate.com first reported the news and says Silva was pulled from the fight after missing a meeting with the Nevada State Athletic Commission.
The UFC 175 card is being headlined by Chris Weidman and Lyoto Machida. Weidman was originally slated to face Belfort at UFC 173, but Vitor pulled out of the fight amid the new crackdown on TRT. The fight was pushed back to UFC 175 after Weidman had knee surgery.
In addition to Weidman-Machida and Sonnen-Belfort, Ronda Rousey will face Alexis Davis on the card, and Urijah Faber and Stefan Struve also have fights on the card.
This shuffling of fighters is a surprise given that it looked like Belfort was initially being pulled because of TRT issues. I guess that’s all cleared up.