In this week's Fight Talk we look at heavyweights who just won't let a rivalry die, and reveal how a fight between Mike Tyson and Tyson Fury might not be total fantasy.

Picking fantasy fights between greats from any era has proven a popular way to pass time for fans during the boxing shutdown, but perhaps a one-off meeting between Tyson Fury and Mike Tyson actually has legs?

Fury, who was named after 'Iron Mike', has spoken about moves being made by Tyson and Evander Holyfield to return to the sport in bouts that can raise money for good causes.

"I had a phone call saying 'would you like to fight Mike Tyson in an exhibition fight?'" Fury told BT Sport.

Holyfield has been posting the kind of motivational training videos that belong in a Rocky movie and former world heavyweight champion Wladimir Klitschko has even turned out.

So if Klitschko says age is just a number for 57-year-old Holyfield, then Tyson's return to the ring must be a cakewalk given he is only 53.

"If he's back in the ring, I would love to see it," unified world heavyweight champion Anthony Joshua told British GQ.

Slightly less controversial gym work has seen Floyd Mayweather draw praise for the functional pad drills he has been doing with 21-year-old world lightweight champion Devin Haney.

Gervonta Davis - who also holds a portion of a world lightweight title and who Mayweather has helped guide in the past - has apparently scrapped his Vegas camp as a result of the Floyd-Haney union.

The British light-heavyweight not only bought a puppy for his fellow Love Island star but somehow managed to get the young pup to write a note.

And finally in boxing's world of brash talk, Billy Joe Saunders offered a touch of humility in his chase of a shot at Mexican belt collector and darling of Las Vegas Saul 'Canelo' Alvarez.

"He doesn't deserve the fight and if he gets the fight he is going to lose," Eubank Jr told IFL TV