Really nice work mate, if i was to knit pick though leave the music out or have it playing just to introduce the fighters. If i hear a crap (not saying this one was) song playing over a highlight video, i always put it to mute. Have the boxing noises in, like the sound of punchers/commentaters etc, it makes it more dramatic.
But keep this up man, ill look forward to seeing the next one.
I like the idea and the video is pretty good.
I would maybe think about putting the names of the fighters( XXXX vs. OOOO) on the bottom so people could boxrec someone they liked since some of those fights are pretty obscure.