Phones: 1-213-267-7787 (USA), +44 2081 036051 (UK) Ring Magazine boxing writer Michael Montero gives his thoughts just after the rematch between Oleksandr Usyk and Tyson Fury in Riyadh, Saudi Arabia.  Usyk defended his heavyweight championship with an unanimous decision victory over Tyson Fury.  Montero now rates Usyk as the best fighter of the 21st century, the greatest cruiserweight of all time, and a top ten all time great heavyweight. https://youtube.com/live/-65ydnWJ0_o