Evander Holyfield has set his sights on becoming heavyweight champion of the world for a fifth time before he retires from boxing.
Holyfield was speaking on BBC Scotland's Sports Weekly
The 45-year-old from Alabama is the only fighter to have been crowned world champion on four occasions but retains the desire to go one better.
"I'm going to keep on fighting and be heavyweight champion one more time," he told BBC Scotland's Sports Weekly.
"Once I do that, I'll write another book and tell everyone how I did it."
Holyfield last held a version of the heavyweight title in 2000.
But he fought for the WBO heayweight belt as recently as October, when he was outpointed by Russian holder Sultan Ibragimov.
And his next bout could well be a non-title re-match with fellow ex-heavyweight champion Mike Tyson, 41, in July.
Holyfield has been boxing for 24 years and hopes he will be able to hang up his gloves before 2008 is out.
"It won't be hard to call it a day," he continued.
"All my life my goal has been to retire as heavyweight champion of the world.
"By the end of this year I should be able to do that because I should have everything that I want."
George Foreman is the oldest man in history to become heavyweight champion, winning a version of the title aged 45 in 1994.
And Holyfield, who's proposed third clash with Tyson has attracted criticism, remembers having reservations about taking on a mature Foreman back in 1990.
"I didn't want that fight," he recalled. "He was 42 and if I won I wasn't going to get any credit.
"But then my manager told me 'we're going to get $20m and then we'll get $30m for fighting Mike Tyson'.
"Sometimes it's good to have these business people around."