Bah, you people aren't thinking outside the box regarding a boxer character.
TN has set a lot of fighting game standards as far as what can work on DOA's engine, just because a character is "limited" to just using their fists does not mean they couldn't attack, counter, and grab in some creative ways.
And whose to say they have to be a "regulation boxer"? They could be a former pro turned street fighter as cliched as that may sound, hell I'd scratch a female type for this guy:
Zack and Lisa's fighting styles are loosely based but a boxer can't get the same treatment?! SMH