Probably the same Mugs who bought tickets to his last fight? People are always wiser after the event aren't they......?
As someone has said, put them on Twitter, also try an app like Twickets, and even look at the Viagogo/Stubhub route, I think you'll sell them, although you may have to take a little hit on them. I had two £100 lower tier tickets for this one, I sold them about three weeks ago for face. Good luck.