Filed under: Featured Videos , News , Videos KSW, widely considered to be the leading MMA promotion in Poland, has a big event planed for Saturday night. It’s called “KSW 39: Colosseum,” and the weigh-ins … well, let me tell you something. They have me jacked up . These weigh-ins are the mother of all weigh-ins. For starters, there’s a live band on stage rocking out so hard. And these guys sound awesome