I'm not sure,I mean he DID beat Oscar twice but I think the moving up in weight seriously diminished his legacy,he should have just stayed in the lower weight classes:Prime Mosley v prime PBF,I know I'd back Mosley and imagine what his record would be like!!! I doubt he would have lost or at least rarely!! OOOOOOO,Tszyu against Mosley@140!!! Kostya loved fighting boxers,very few survived with him,so it would be a great great fight.