Last weekend’s Heavyweight Championship fight between Deontay Wilder and Tyson Fury has been hailed as one of the best for years, and with Anthony Joshua holding the other championship belts, there are echoes of great rivalries of the past: Evander Holyfield, Lennox Lewis and Ruddock Bowe, even the ‘golden years’ of Muhammad Ali, Joe Frazier and George Foreman.