From BBC
Chelsea have agreed a club-record fee of £26m with Lyon for Ghana midfielder Michael Essien.
The 22-year-old has agreed a five-year contract with the Blues and will be in London to take his medical on Tuesday.
Essien's arrival at Stamford Bridge ends the summer's longest-running transfer saga.
Chelsea had bids of £10m, £16.75m, £18m, £21m and £21m plus Tiago turned down by the French champions before finally reaching agreement.
The Blues will pay the fee in full next week.
Lyon official Bernard Lacombe said: "Financialy it is an extraordinary operation. It is one third of our budget and it represents the entire budget of some Ligue 1 clubs.
"For Michael it was not a question of money. It was his dream to play in England."
Lyon president Jean-Michel Aulas added: "It is with great regret that Michael will leave Lyon. We wanted to keep him but we cannot make him stay.
"It is a wrench but for the club this is a good deal.
"We have talked about Michael's situation in great detail and we have decided it is better if we let him go."
It's sad to see him go but for him it is extraordinary and we all wish him good luck
Lyon defender Sylvain Monsoreau
He described Essien as a player "who for the last two months has no longer wanted to play for Lyon".
Aulas added: "This decision is regrettable, in a sporting and ethical sense. Everything has been done to keep him."
Essien, tipped as one of the best six midfielders in Europe by Lyon boss Gerard Houllier, will now compete for a place in the Chelsea side with the likes of Frank Lampard and Claude Makelele.
Lyon defender Sylvain Monsoreau said Essien's team-mates understood why he wanted to join Chelsea.
"It is sad to see him go but for him it is extraordinary and we all wish him good luck," said Monsoreau.
Fellow defender Anthony Reveillere added: "Lyon existed before Michael Essien and will exist after him but it is true that we are losing a fantastic player.
"It is his choice to leave and you have to respect that."