I've had the desire to pair football and boxing wholesale for a while now.
Headgear, 16 oz gloves and (well, certifiably insane athletes, and) a halo rule to keep it to one-on-one and you have the greatest sport to have ever existed. The fatalities that result from one man sprinting with the ball and another plating and throwing a right cross might just be worth it.
A friend of mine got me a movie that I think was called "Fireball" that was about Muay Thai Basketball. I think it was first basket wins, and everyone fights everyone else always. It was AWFUL and not even worth watching.
After some soul searching I realized there is no sport more entertaining than just seeing people beat the crap out of each other for no reason whatsoever.
Really. It combines all the shitty parts I hated about point sparring. The future of combat sports is jugging:
YouTube- Blood of Heroes
Now go rent Blood of Hereos.