Lee Haskins says his interim IBF bantamweight world title fight with Ryosuke Iwasa will be the biggest of his ring career.
Bristol's Haskins, 32, takes on Japan's Iwasa in his home town on Saturday.
Reigning IBF champion Randy Caballero is unable to defend his crown after sustaining an ankle injury.
"I didn't think it would ever happen. This is major, it's something I dreamt of since I was a kid," European champion Haskins told BBC Points West.
"I always wanted to be a world champion, the chance is here now and it's up to me to win it."
|Tale of the tape|
|Lee Haskins: Age 32. Fights 34, 31 wins, three defeats|
|Ryosuke Iwasa: Age 25. Fights 20, 19 wins, one defeat|
Haskins will have home advantage at the Action Indoor Sports Centre with the winner set for a shot at Caballero, who beat Darlington's Stuart Hall last October to claim the title.
"Everybody is hyped up for it, I think it's going to be a great fight," he said.
"This is the biggest fight of my career and I've had to push myself to the limit. I'm battered and bruised, but it's all part of the fun and hopefully it will be worth it and I'll have that belt on my shoulder."
A victory could also lead to an all-British clash with WBA champion Jamie McDonnell, and Haskins, who has won 31 of his 34 fights, knows he has to take his opportunity.
"This could be the last chance I get to fight for a world title so I have to take it," he added.