Some people have gotten here, on this blog with the keyword "catholic is mma a sin".
LOL, I'M LIKE AN UBER MMA FAN LOL FOR TEH IRONY.
Speaking of which, I kind of like the thread on The Ship where those condescending people talked down about MMA and the people who support it, with all the usual redneck/low-class/violent type/non-christian insults that you'd expect. Personally, I can't see why anyone would think that there's anything morally wrong with Mixed Martial Arts. Yes, it can be violent. So's boxing. So's most other contact sports. I'd wager you're less likely to get a career or life ending injury in the most uncomfortable and painful takedown than in a football game.