When you talk about a fighter getting into another fighter's head I don't think there's a better example of former UFC light heavyweight champion Jon Jones and current UFC light heavyweight champion Daniel Cormier, two men who like one another about as much as oil likes water.
The two bickered furiously today (Friday, March 4, 2016) during the UFC Unstoppable press conference from inside MGM Grand Garden Arena in Las Vegas.
And when I say bickered, it was more like Jones burrowing deep under the skin of Cormier like a tick to a deer.
It all started when Jon Jones said that his felony hit and run accident last year changed him as a man and that he isn't the same person he was last year.