A look at Daniel Martz's record suggests he's not in Joseph Parker's class, but judging by his Twitter page, he's got plenty of game when it comes to banter.
All the pre-fight chat should make for an interesting build up to next month's Fight for Life where undefeated Parker will take on the 2.02m American.
Martz doesn't mince words on Twitter, writing rather succinctly, "I beat people up" in his profile's job description.
However, with 140 characters to play with, the prolific tweeter drops plenty of bombs, and he's clearly not short on confidence.
It seems he's pretty keen on the 'king' theme...
Or perhaps he's just a big fan of The Titanic.
So far, Martz hasn't fired any tweets in the direction of Parker, but there are suspicions he may be taking a couple of pop shots at his promoters Duco.
Martz doesn't limit himself to only tweeting about boxing, either. Dating is another favourite topic for the towering American.
However, he may want to work on his similes...
And this tweet... is he talking about what I think he's talking about?
When it comes to crass though, Floyd Mayweather is clearly still the undisputed pound for pound champion.
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