Ronaldo “Jacare” Souza stated that he did not sign any deal with the UFC. According to a Vale Tudo forum, Souza had signed with the UFC and an announcement was made on this during an “Amazon Challenge Event.” It seems to have been a rumor that Souza was not fully aware of until recently. He does admit that he was close to signing a contract with the sister-company of the UFC, the WEC.
Here is a snip from Souza as he clears up all of the rumors regarding his UFC signing (props to sherdog.com):
“I have not signed with Zuffa, unlike what people have said on the
Internet…I was close to signing and
fighting in WEC, but nothing is settled right now.”