Either one is expected to fight Haye later this year if Haye defeats John Ruiz in April.

BBC: Audley Harrison sets sights on Klitschko brothers

Haye, who defeated giant Russian Nikolay Valuev in November, first faces a mandatory defence against American John Ruiz.

BBC: Bernard Hopkins targets David Haye title shot

But after Chagaev was named "champion in recess", Valuev regained his crown when he beat John Ruiz in August 2008.

BBC: Chagaev pulled from Valuev fight

Haye is expected to fight former two-time world heavyweight champion John Ruiz next and is confident of "knocking him spark out".

BBC: British fans inspired win - Haye

The former cruiserweight king, who has lost only once in 25 professional bouts, then defended his title by stopping American John Ruiz at the MEN Arena in April.

BBC: WBA champion David Haye to fight Audley Harrison

Meanwhile, Klitschko said he would flip a coin with his brother to decide who will fight Britain's WBA champion David Haye, if Klitschko defeats Sosnowski and Haye defeats John Ruiz on 3 April.

BBC: Audley Harrison's European title challenge called off

Haye, who successfully defended his title for the first time by stopping John Ruiz earlier this month, now hopes blockbuster clashes with the Klitschkos would be too big not to eventually come to fruition.

BBC: David Haye set to start talks with Klitschko brothers

However, following another one-sided victory over Sheffield's Clinton Woods (who, it should be noted, went on to win a world title, as other Jones opponents in this period did) in 2002, Jones' paymasters HBO had seen enough, and in 2003 he challenged John Ruiz for the lumbering heavyweight's WBA crown.

BBC: Jones out to prove his greatness