Frank Warren named his top 5 heavyweights in the world

1. Tyson Fury (34-0-1, 24 KOs) - WBC champion, Warren fighter

2. Oleksandr Usyk (21-0, 14 KOs) - IBF, WBA and WBO champion

3. Anthony Joshua (28-3, 25 KOs)

4. Daniel Dubois (20-2, 19 KOs) - Warren fighter

5. Joseph Parker (35-3, 23 KOs)

Recall that on May 18, Fury and Usik will fight for all four heavyweight belts. Immediately after that, the winner will be stripped of the IBF title, for which Dubois will almost certainly fight Filip Hrgovic (17-0, 14 KOs) on June 1.