Amir Khan says his fight with WBC champion Danny Garcia has gained extra significance after he had his WBA light-welterweight title reinstated ahead of the clash in Las Vegas on Saturday.
Khan lost his WBA and IBF belts to Lamont Peterson following a controversial split points decision in December last year, with a rematch between the two being subsequently cancelled after the American's failed drugs test.
The Brit now faces Garcia with both titles on the line at the Mandalay Bay Convention Centre, with the memories of his defeat to Peterson last year a distant memory.
"Justice has been done," Khan said. "It means this fight (against Garcia) will show who is the best in the division.
"I'm glad the WBA are reinstating me as champion; it means I walk into this fight as world champion.
"There is a chance to win the WBC belt as well but, not only that, the Ring magazine title will be on the line. There are five main belts in this division and I will have won four of them if I win this fight.
"The only one I have not won is the WBO one, but I tried to fight Tim Bradley for that and he turned me down. If I win against Garcia, it means I have done everything I want to do in this division."
The 25 year old and former Olympic silver medallist is not the only British boxer in action on Saturday night, with David Haye and Dereck Chisora renewing their rivalry following their brawl in Munich in February.
But Khan insists his fight with Garcia, which will decide the No.1 boxer in the light-welterweight division, is a bigger clash than the contest which will only settle old scores at Upton Park.
"Boxing fans know my fight is bigger," Khan told BBC Radio 5 live. "There's a world title on the line."
"David is a friend of mine but the fight is not a big fight," he added. "There are no titles on the line and I don't think Chisora is in the top 10 in the world.
"I'm in the capital of boxing in Las Vegas. It makes my fight a lot bigger. And the guy I'm fighting Danny Garcia is in the top 10 in the world."