By Tim Royner: Anthony Joshua (22-1, 21 KOs) is using German heavyweight prospect Albon Pervizaj (12-0, 9 KOs) as a sparring partner to help replicate the fast hands of his rematch with Andy Ruiz Jr. (33-1, 22 KOs) on December 7. The 24-year-old Pervizaj has similar hand speed as Ruiz Jr., and he should be […]