Lewis had a tough final fight against Klitschko four years ago

Reports on Saturday quoted US boxing promoter Bob Arum as saying that the former undisputed heavyweight champion was considering a return to the ring.

But Lewis, 41, said on his website: "I have no idea how these rumours get started, but I'm a man of my word - I will remain retired."

The Briton quit in June 2003 after defending his titles against Klitschko.

Speculation over a rematch mounted when ex-WBC belt-holder Klitschko, 36, announced his comeback recently.

I'm proud of what I accomplished as champion and confident that my legacy will remain intact Lennix Lewis

The Ukrainian said: "I said I would only come out of retirement if there could be a rematch with Lennox, and I am hopeful he will comeback also."

Arum was quoted by the Daily Mail as saying: "Lennox has been discussing the prospect of a one-off world title rematch with Klitschko.

"I am told Lennox is back in the gym. This is an enormous fight in the making."

Lewis added: "I'm flattered that the boxing community is eager to have me back in the ring. but I'm happy with my life and I don't need to chase a big pay day."

Klitschko could be in line for a shot at reclaiming the WBC title from Kazakhstan-born Oleg Maskaev, who is based in America.