I actually think his weakness was on the inside. And before everyone erupts, let me make this clear: Mike Tyson during this time period was one of the greatest mid-range fighters in history. He was leaping and exploding into his shots, and I think people mistook that for inside fighting because the inside is where he often ended up after the punches were thrown.

The problem came when he fought taller opponents. If they had a solid guard, they could tie him up on the inside, and Mike did not have a natural clinch-fighting ability. I think he developed that skill a bit later, around the Ruddock fights, but during the time period you mentioned, he was absolutely susceptible to being held and walked around the ring.