I agree with Bigfun here but feel that this needs to be qualified as a comment like the one above doesn't help the OP one bit.
I agree its doesn't work as the viewer feels disconnected from the action. It comes across more like a snap-shot or record image than anything else. I have never shot a boxing match but would like to give it a try. Look at the pro/good images and see what they do. My limited knowledge is that they get in close, ie under the ropes, and shoot from low down. Try different lenses, standard and wide, to get the best effect.
As with most of these things, I think its trial and error. Keep up the good work.