1. Billy Joe Saunders
Unbeaten Saunders holds the thing Golovkin allegedly wants most – the final piece of the middleweight world championship puzzle.
The WBO champion has been sidelined since he won the belt in December, in part due to a hand injury which scuppered his scheduled first defence against Max Bursak. His promoter, Frank Warren, is working on a marquee fight for him this summer, and Golovkin is the desired opponent.