Carl Frampton claims he is in his "prime" ahead of Saturday's fight against Luke Jackson at Windsor Park.
Frampton (25-1, 14 KOs) defeated Nonito Donaire in a unanimous points victory to win the interim WBO featherweight belt in his last fight in April, but insists he is now in an even better shape.
"I'm fitter now than I was against Donaire," Frampton, 31, said at Thursday's press conference. "At the end of that point I felt I was in the shape of my life, because mentally, I'm so happy with boxing.
"In the last year everything has flipped for me. I was winning fights and beating big names but I wasn't enjoying it -- I am enjoying it (now). I'm in my prime now and you're going to see bigger performances."
Jackson (16-0, 7 KOs) perhaps isn't the big name fans expected Frampton to face in his much-anticipated bout at Windsor Park, home of Northern Ireland's football team.
The Australian will be fighting outside of his home country for the first time, and will appear in front of a sell-out crowd of 23,000 on Saturday night.
"I just believe that I am a different level (to Jackson)," Frampton said. "It doesn't matter what anyone says right now , it's what happens on the night that's the important thing.
"It's all about getting the hand raised at the end of the night and that's what I'm going to do. I'm ready for this fight."
Victory over Jackson will lead to a bigger fight for Frampton, who refused to talk about potential opponents Oscar Valdez and Josh Warrington.
"I think he understands what's at stake," Jackson said. "If he loses to me his career is pretty much over."
"I've got to fight the perfect fight. I believe I can do that," Jackson added.