JJ has little chance, beyond being a Giant S-HW, against any great Top HW... winning a fight just because you are a bigger animal doesn't equate to better. it is just life, the Bigger over the smaller, most of the time.
See Dokes vs Cobb for reference. Cobb a big durable guy with an iron chin was outspeed and outboxed by Dokes. Basically a repeat of that fight.
Joyce is the slowest moving heavyweight contender I've ever seen. Sad to see him get beat up like that.
I’d really hate to pick Joyce over Dokes who primed at a much earlier age had a deeper record and much better skills. I would hope for Dokes to win. But it’s also hard to get around the fact that Joyce had ample power to hurt Dokes with, a superior chin and a lot more size. I would opt for Dokes to win a decision but it’s a risky fight