Vitor Belfort's lab results, which were accidentally emailed out 3 years ago, raise questions about the UFC's efforts at self-regulation at that time.
Three years ago in Toronto, Canada at UFC 152, Jon Jones defended his belt against Vitor Belfort. Belfort was moving up from middleweight in order to replace Dan Henderson as the new challenger for the light heavyweight title. An injury to Henderson and the refusal by Jon Jones to fight Chael Sonnen on short notice had forced the cancellation of the whole UFC 151 event.