The Barclays Premier League club issued a High Court claim against Lyn and their former chief executive Morgan Andersen in October in an effort to recoup the £16million transfer fee they paid for the Nigerian.

Chelsea claimed the transfer was based on the "fraudulent misrepresentation that Mikel had an employment contract with Lyn".

A short statement on the club's website, www.chelseafc.com, tonight confirmed the matter relating to Lyn had been resolved out of court but figures were not revealed.

It read: "Chelsea Football Club and FC Lyn Oslo have resolved all matters between the two clubs with regard to John Mikel Obi.

"The terms of the agreement will remain confidential. There will be no further comment."

Chelsea decided to take the matter to court after Andersen was convicted in Norway of forging documents relating to the player in 2005. He was given a one-year suspended sentence when the court case concluded this year.

It was the latest twist in the long-running saga of Mikel's move to Chelsea.

The 21-year-old eventually joined the Blues in 2006 after a wrangle involving Manchester United, who claimed to have reached an agreement to sign him the previous year.

United eventually dropped their claim after the player made clear his desire to move to Stamford Bridge. In return Chelsea agreed to pay United £12million with £4million going to Lyn.