Once it was fight time however, neither fighter seemed to be a fan of the other.
Diaz came out aggressive early, but found himself on his back courtesy of a B.J. Penn takedown. Penn was strong and fast in the early part of the fight, controlling Diaz with his boxing and slipping in shots when stuck in the clinch.
Everything changed when round two began.
In his normal fight mode, Diaz plodded forward and started to throw his signature boxing combinations that apparently know no end. The Stockton, Calif. native blasted away at Penn with combinations that never really slowed down as the Hawaiian started to bleed from his nose and his eye swelled up like a balloon.
Penn never fell, but he certainly wasn’t feeling good after Diaz just blitzed him with punches to the head and body.
The final round saw a more active Penn, who tried his best to fire back in small bursts while it was obvious that his cardio was failing him. Diaz just sat back and waited for Penn to slow and then cracked him time and time again with jabs then unloading the occasional rib shaker body punch.
When the final horn sounded both fighters were bloody, but Diaz held his hands high in victory while a broken and beaten B.J. Penn looked dejected in defeat.