"Fix" is probably the wrong word to use. This clearly had nothing to do with Burns.

But the fact is - some people KNEW Cook wasn't going to last long in the fight. So much so that they were betting large sums on a powderpuff puncher scoring an early KO. The bookies don't suspend betting for a few tenners.

So even if Cook's back injury was genuine, and I have no reason to doubt it wasn't, someone profited from knowing he wasn't fit.

If the money wasn't bet then a "freak" accident would be a reasonable explanation.