The main event will be a rematch between the two fighters, who waged a pitched battle against one another in their first meeting in March. The first fight was announced as a decision victory for Johnson in the cage, but was later revealed to be a majority draw. Perhaps that erroneous reading of the result colored the opinions of the oddsmakers.
The early odds, courtesy of our friends at OddsShark, have Johnson as the favorite in the fight, at between -140 and -155 to win. McCall is the underdog at between +120 and +125.