there is really no reason that an MMA fighter couldn't do exactly what Lewis/Holyfield/Douglass all did to Tyson. Simply tie him up on the inside. If these three boxers were able to tie him up and neutralize him while wearing boxing gloves on the inside than why couldn't a top MMA HW. Especially considering the amount of time they spend on muay thai and fighting from the clinch. Some day when the money is right maybe we will see a world class boxer get in against a top MMA and we will find out how they would fair. I still maintain that boxing's skill set although very helpful does not directly correlate to mma striking and that being one dimensional regardless of how dominant you are at that one dimension makes you very vulnerable in MMA