1. Gennady Golovkin
It is the big fight, one the biggest fights out there that can be made in the sport. The WBC have mandated that Golovkin should be next.
There are hurdles that need to be crossed, the weight for instance, Canelo ought to come up to the middleweight limit.
But Alvarez has insisted he has no fear of Golovkin. (Whether his promoter can quite say the same is unclear.)