Who says the UFC always has great undercards? That's BS. I've watched main events that stunk. and a competitive fight in Boxing is uncomparable to a competitive MMA fight. MMA is so broad that a competitive fight could end up with both fighters barely scratched. On the other hand, a great boxing fight more often than not leaves both boxers bloodied, bruised and a candidate for brain damage. A single fight can decide the future of a boxer, the accumulation of punches just gradually takes it's toll sooner or later. So to sum it up, asking a competitive fight everytime for a boxer is just asking too much. They deserve breaks. You guys ever heard of tune-up fights?