Kell Brook believes moving up to middleweight to face Gennady Golovkin is a gamble that can lead him on the road to boxing greatness.
The IBF welterweight champion is stepping up two weight divisions to take on the Kazakh, who is putting all three of his middleweight world titles on the line for a Sky Sports Box Office card on September 10.
Brook (36-0-KO25) agreed to take on Golovkin (35-0-KO32) after a potential fight between 'GGG' and Chris Eubank Jr did not materialise.
Eubank Jr has since branded Golovkin-Brook as 'a joke', but the Sheffield fighter says it is a fantastic way for him to earn recognition as one of the best fighters in the world.
Talking about the move up the weights, Brook told a news conference in New York: "Sugar Ray Leonard boxed Marvin Hagler and beat him.
"My favourite fighter, Sugar Ray Robinson, has done that and to be a great fighter you have got to to do great things.
"For me, a welterweight, to step up and take on the most feared fighter in the world in Golovkin - to take this fight, it's going to be hard.
"Everything is going to have to be spot on in training, I've got to do everything right. Anything short of that I am not going to come up with the goods.
"We're going to put the hard work in with the training, we're going to go through hell in this training camp. But that's what you need to do to reach greatness."