Super middleweight king Joe Calzaghe wants to fight former three-weight world champion James Toney at Cardiff's Millenium Stadium on 8 July.
Calzaghe (left) has mocked Toney's weight
Calzaghe dismantled Jeff Lacy to add the IBF belt to his WBO title, a fight Toney said Calzaghe was sure to lose.
"Toney fancied Lacy's chances so I would love to see how he would get on with me," said Calzaghe, 33.
"He should lose the flab and fight me. But I don't think anyone can drag him out of his training camp at McDonalds."
Calzaghe is bristling after Toney told BBC Sport that Lacy would "destroy" Calzaghe at the MEN Arena.
Toney also said: "Calzaghe never did anything. He beat Chris Eubank nine years ago, but what has he done since then? He's a joke."
Toney, 37, failed to win the WBC heavyweight crown on Saturday after a disappointing draw with Hasim Rahman.
He held the IBF middleweight and super middleweight title in the 1990s before moving up to win the cruiserweight crown.
However, a fight with Calzaghe is unlikely to happen as Toney scaled 236lb against Rahman and would have to lose almost 70lb to make the super middleweight limit.
"I would love to kick his behind now because I just missed out on doing it in the '90s when I was coming through," added Calzaghe.
Former four-weight world champion Roy Jones Jr, who beat Toney in 1994, has already said he would like to fight Calzaghe.