In March, the UFC officially announced the date and location of the Anderson Silva vs. Chael Sonnen rematch, but now the timing of the fight appears to be up in the air.
At a press conference following Saturday's UFC on FUEL event, UFC president Dana White confirmed that the date is no sure thing. In trying to finalize the show -- originally scheduled for June 23 -- the UFC has come up against some resistance because Rio happens to be hosting a United Nations Conference on Sustainable Development during the same week.
"The problem is, they don't like the idea of us coming the same time this United Nations convention is going on," he said. "The other problem is hotel rooms. Most of the hotel rooms are being taken up. And we don't think, we know that the Anderson Silva-Chael Sonnen fight is one of the biggest sporting events this year, in the world."Link