UFC Sao Paulo main event breakdown: Derek Brunson vs. Lyoto Machida

On Nov. 4, the UFC middleweight title goes back into circulation after a year of inactivity when champion Michael Bisping attempts to face down a challenge from welterweight great Georges St-Pierre.This weekend, the jockeying for position within the division begins in earnest when Derek Brunson takes on Lyoto Machida at UFC Sao Paulo. To be clear, neither Brunson or Machida has a realistic path to a title shot based off a Saturday win, but as the division begins to heat up again, the loser will