By Ben Dirs
BBC Sport in Las Vegas
Bernard Hopkins is hoping to meet with Joe Calzaghe's camp to start talks about another cross-Atlantic super-fight in 2008.
I need a reason to get up at 5.30 in the morning
The former middleweight king, now campaigning at light-heavyweight at the age of 42, has urged Calzaghe to be true to his word and fight in America.
He told BBC Sport: "If he's willing to come here, we can get the ball rolling.
"The man went on national TV and said: 'Bernard don't have to come over to the UK, I'll fight him in his backyard'."
Hopkins was speaking ahead of Ricky Hatton's fight against Floyd Mayweather in Las Vegas.
With Calzaghe also in Nevada supporting Hatton, Hopkins hopes arrangements can be made.
"I hope some discussions take place while he's here and we can get the next big Europe-America fight on," he said.
"The fight would be at 175lb for my undisputed light-heavyweight championship.
"I'll be ready when Calzaghe gets to Vegas, I'm always ready. If you want a time-frame, spring or June. I'd love it to be close to 4 July, because there's a lot of American history involved.
"I'm not interested in Roy Jones or Felix Trinidad, I've been there, done that.
"Joe's undefeated and I want to be the one who gets rid of his '0'. That would be an accomplishment at this late stage in my career - I'm 43 on 15 January.
"I need a reason to get up at 5.30 in the morning. I need to say 'this guy has a zero that I can turn into a one' to get me the hell out of bed."