"This is the time to show what I already know and my team already knows.
Now it's just time to do it in front of the bright lights and show what I have to the world," Mills explained.
"I hope I prove the doubters wrong.
They may not think I deserve this opportunity, but I'm gonna prove 'em wrong and show 'em it's well deserved and I'm gonna be a future world champion," he added.
Mills acknowledged Vargas's talent but emphasized the competitive value of the fight. "He's a very talented fighter," Mills said.
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"I wanted this fight because he won 'Prospect of the Year' and he is regarded as the hottest prospect out there, the guy to beat.
And if you can beat the guy, then what does that make you? You're in the best position you can possibly be in."
Mills also addressed financial issues from his previous event in Rochester on April 25, where local organizers failed to pay fighters.
"None of the fighters have been paid, as far as I know, to this point," he said.
"I know I'm gonna get my money one way or another.
I'm not really stressing over it at the point, but I do feel bad not only for myself, but the other people who were relying on that paycheck to pay some of their bills and to support their life," Mills added.