In terms of a double-header, from two different promoters, with two different broadcasters, over two days and in one city, it really does not getting much better in the world of boxing than this weekend.  One of the greatest rivalries in boxing will come to a conclusion at Madison Square Garden on Friday as Katie Taylor and Amanda Serrano battle it out in what will more than likely be the big finale between the pair on an all-female card which features three undisputed world title fights and three more world title fights, two of those being unification clashes. Remarkable.