Gavin Rees believes he has the ability and tactics to shock Adrien Broner after the pair met for the first time ahead of Saturday's fight.
Broner will defend his WBC lightweight title in Atlantic City with Welshman Rees being a massive underdog to bring the belt back to the UK.
The brash American has compiled an impressive 25-0 record, with 21 of those wins coming inside the distance.
He has been touted as the next Floyd Mayweather but Rees, who briefly held a world title at light-welterweight five years ago, thinks he has the tools to expose some chinks in the armour.
"He's got all the mouth let's see if he can back it up," said Rees. "It's just a normal fight to me to be honest, it's just a ring.
"I've been over to Paris and won so fighting away from home doesn't bother me in the slightest.
"He's pretty cocky and I think he underestimates me. The game plan we've got is right and I'm confident in my own ability, he expects me to just come running in head first but he'll have a shock on the night, a lot of people will.
"His attitude stinks man. He shows fighters no respect, but he hasn't even earned the right to do that. What has he done? I've been in the States for five weeks now and American boxing fans don't like him.
"They tell me they hope I beat him and shut him up. I think he acts like a fool for no reason and no one really likes that.
"Who has he fought? I've seen his fights and half of those guys just stood in front of him letting him dictate the pace of the fight. I'm not going to let him do that. This is the first fight that I have trained away from home because I'm going to show him I'm no walk in the park.
"I've never been stopped. I can take him out in the first round, but I am ready to go into deep water if I have to. Ether way, I have trained hard and will be ready to dictate the pace of the fight and not let him get away with a lot of what other fighters have let him do.
"I have to watch for his right uppercut which he throws from down low, but he's not the best on his feet either. Work rate is going to be important."