Terence Crawford: Is Jaron Ennis the opponent who can actually beat the pound-for

Terence Crawford has won undisputed world championships at super-lightweight, welterweight and all the way up at super-middleweight.

Unbeaten in his career, in that extraordinary run he's beaten standouts Errol Spence, at 147lbs, and most recently Canelo Alvarez, the dominant force at 168lbs.

Beating Canelo at super-middleweight was implausible enough, moving up yet another division would not be realistic, even for Crawford.

But he is running out of challenges.

In one swoop he's picked up all four of the major super-middleweight world titles, so there are no rival world champions for him there.

Crawford won the first fight with Alvarez so convincingly there's little call for a rematch.

Hamzah Sheeraz is one of the leading contenders at super-middleweight, Chris Eubank Jr is a big nam