I was really disappointed that the brave tactics of both defeated opponents at the top of the bill didn't garner greater reward. Briggs opponent attempted the mass and sudden exhalation of air from his lungs tactic last employed by James J Corbett v Bob Fitzsimmons in 1897, in which he was deliberately being walloped in the stomach in the hope that the sudden mass evacuation of air would knock Briggs to the canvas. Fair play to the American, he didn't even flinch. Unfortunately, as the Argentinian soon discovered, this tactic cannot be employed for very long before it results in the fighter's own demise.
In the case of Haye, his opponent, unbeaten in 30 fights, relied on the tactic of trying to get Haye to bust his knuckles on his forehead or to damage his toe as his lumbering frame hit the canvas at every given opportunity, each time missing Haye's feet. Apart from this I seen nothing offensively from either opponent. The ringwalks were the only offensive thing on view in my opinion.