Dude, this is one of the most realistic drawings I've ever come across! I'm just amazed by it! It's great to get to see all that fluid come out like that. You can see all their muscles and veins so well. The black and white color makes it work perfectly. Everything just seems to come out of real life.
It doesn't seem like they're in a boxing ring. It looks more some flashy background, like you would normally see on this site. I guess it was very appropriate then! Every detail is fantastic. I heard boxing is a rough sport. If you want to do it, more power to you.