Derek Chisora shares shock rumour that would place Oleksandr Usyk vs Tyson Fury rematch in doubt

Derek Chisora plunges Tyson Fury vs Oleksandr Usyk rematch into doubt with 'rumour'

Oleksandr Usyk is set to face Tyson Fury again with a date in October pencilled in for the heavyweight rematch - but the Ukrainian..