It's a battle that goes all the way back to their college days at the University of Miami — defensive end Olivier Vernon vs. left tackle Jason Fox. Now that matchup is taking place at the NFL level with the Dolphins, and there's much more at stake.
The outcome of the Vernon-Fox duel at training camp might go a long in way in determining whether the offensive line will be considered competent heading into the season, and whether the defensive line could be considered ferocious. Both players are 'X' factors.
Fox and Vernon downplay the importance of their daily faceoffs, which have seemed to tilt in Vernon's favor through four days of camp.