Somehow, B.J. Penn's fateful showdown with surging Canadian star Rory MacDonald has turned into the most personal fight on Saturday's card.
At UFC on Fox 5, Penn is putting his reputation on the line in a last-ditch effort to salvage what remains of his legacy. His return to welterweight has been fraught with setbacks, but "The Prodigy" is determined to maintain his elite status.
MacDonald is having none of it, insisting through various interviews and press conferences that he'll hurt Penn worse than anyone else has yet.
But with such widely different fighting styles, how will the fight go down? Here's a few bold predictions of how the bout will unfold in Seattle's KeyArena, round by round.