Tyson Fury has his "fire" back and says he will be ready to prove he is the king of the heavyweight division when he defends his titles against Wladimir Klitschko on July 9.
Fury pulled off a major shock by beating Klitschko by a unanimous decision in Dusseldorf last November and will return to the ring for a rematch with the veteran Ukrainian at the Manchester Arena.
The WBA Super and WBO champion was stripped of his IBF title when he agreed to take on Klitschko once again, with fellow Brit Anthony Joshua taking that crown when he beat Charles Martin this month.
Fury revealed that his hunger has returned as he prepares to face Klitschko in his home city in just over two months' time.
He told Sky Sports: "My desire is back. I've got that fire back in me. It's not the desire to go and win belts, but it's a desire to keep them. They are mine. I won them.
"I am an established champion, I am the number one in the division and as far as I am concerned, I've got all the belts I won because I didn't lose them. Did anyone beat me for the IBF?
"I am still the IBF champion no matter what paper says, I never lost that belt in the ring."
He added: "All the pressure is on me but you know me, I don't bother with pressure - it's nothing. I've got one foot in the pressure cooker, the other one in the frying pan.
"A little bit of boxing pressure is nothing to me. I will be walking out to 20,000 people cheering me and I've already been in a big 30-40,000 venue before out in Germany, so big arenas and big things are what I was born to do."