Lindsay Lohan's father Michael has challenged Britney Spears' ex-husband Kevin Federline to a boxing match, to raise money for charity.

Lohan Snr, a former convict, wants the bout to raise money for a cancer charity based near his Long Island, New York home.

Although Federline has yet to be approached, Lohan is already planning his training regime.

He tells Ok! magazine, "Everyone wants me to fight K-fed because he's a notorious celebrity dad and so am I. It's for charity."

"It's serious boxing. You have to go get a trainer. I have to register with the Mature Boxing Association."

And if Federline says no - he'll search out another willing celebrity opponent: "I don't care who it is; it's for charity. I've been beaten up by the press, so I don't care if I get a few shots by a kid half my age." Lohan is even trying to pair up his girlfriend Erin in a fight, adding, "They're trying to match her up with Debbie Gibson."