It is true she has xy chromosomes, but it may also be true she has "undropped" balls and a penis even if it is very small. This is an abnormality. The fact that she has a male appearance may be because she is taking testosterone to increase her strength. There is a name given for this, but at the moment, I don't remember what it is. Yes, she should be boxing with women but needs to stop taking the testosterone. Better yet, set up a third league for transgenders and testosterone inflated women.