Neither have stepped up yet in their respective comebacks; the loser retires and the winner puts himself back in the top 10 picture. Stealing a quote from Texas politician/columnist Kinky Friedman here, "Why the hell not!?"
Just a note, this is strictly theoretical at this point. No there are not any current talks of this fight between promoters.
I'd watch... Tho I'm pretty sure Diaz's people consider themself way ahead of having a fight Vs. Kats at this point.
Katsidis says he values his health and wouldn't jeopardise it. But shows no sign of taking his own good advice and retiring. Your were a warrior Mick. But the time has come to make a smart decision. Not one based on courage.