Werdum vs Cain to Superbowl weekend in Vegas?
However, Ariel Helwani reported on UFC Tonight that the UFC is considering instead to hold Fabricoo Werdum vs. Cain Velasquez in Vegas on Super bowl weekend.

The UFC had planned for the rematch between heavyweight champion Fabrcio Werdum and former champion Cain Velasquez to take place in March, at at arena in Curitiba, Brazil. However, Ariel Helwani reported on UFC Tonight that the UFC is considering instead to hold the fight in Vegas on Super bowl weekend.
Under that scenario, Werdum vs. Cain would become the main event in UFC 196 on Feb. 6.
The fight location is still in flux, but if a deal acceptable to all sides cannot be reached in Brazil, the fight will be Vegas bound.
The first fight between the pair took place in the thin air of Mexico City, and Velasquez was beaten up by Werdum, who wisely trained at altitude. Curitiba has an elevation of 3,000′ and Vegas 2,000′, so that will not be a factor in either case.

