I have had serious trouble understanding this post. Is this 'weakest champion' supposed to fight Tyson (from RJJ fight) in his prime years, in his title years or in 2020 (when the Tyson-Jones fight happened)? I personally think every single champion in heavyweight history would beat the Mike Tyson who fought RJJ in his fifties if they were allowed to fight while they were holding their title.
Except that Carnera is far too big for Tyson and Burns is faster than Tyson. And both Carnera and Burns have age advantage on their side - massively. See what happened to other boxers who attempted to compete in their fifties. Roy Jones Jr. faced an MMA fighter called Anthony Pettis who had never boxed professionally at the age of 54. Pettis beat Jones. Evander Holyfield also faced an MMA fighter called Vitor Belfort and got stopped in one round. Holyfield had only been stopped twice in his professional career - the first was against Riddick Bowe and the second came when he was in his mid-forties. Now, Holyfield was 58 years old when he fought Belfort, but not only had Belfort fought a solitary boxing bout until that point, but he was a retired MMA fighter and was 44 years old himself. Finally, Mike Tyson lost his last two professional bouts against two low-level journeymen - Danny Williams and Kevin McBride. Granted, Tyson was in bad mental health, but he could not even go the distance with those two guys, and he was not even 40 years old!!! Tyson at age 54 would lose against most journeymen.
If 54 year old Tyson had been capable of beating anyone that could win a title he wouldn't have fought an exhibition against a shot former middleweight. He would of come back and tried to make a run at a title. Fact is nobody beats father time, 54 year old Tyson can smash most men half his age but an actual world level pro, not a chance, hence why he only fought an exhibition.
No one really. Maybe a 37 year old Jess Willard. Maybe Tommy Burns since I don’t think Burns could handle being hit by Tyson. but he loses to almost anyone else.
Carnera didn`t have Tyson`s punch technique and was easier to hit, Burns didn`t look quicker than Jones or Tyson to me.