you guys do know that iron mike looks old and slow against very good fighters in later rounds.
In a 3 round match against a regular joe lunchbox with joe lunchbag stamina, tyson would probably break some ribs, give you a concussion, split your face up, and generally make you look and feel awful.
Most of us untrained fighers don't do things like guard constantly. The first sliver of daylight, Mike will take it and the next thing you know, you're waking up on the mat.