Chelsea have been told that they will know if their appeal over their transfer embargo has been successful by December.
Matthieu Reeb, the secretary general for the Court of Arbitration for Sport (CAS), will pass the final judgement on the club after FIFA banned the Blues from signing any new players until January 2011.
World football's governing body ruled on Thursday that Chelsea were guilty of inducing Gael Kakuta to break his contract with Lens in 2007.
Reeb told Sky Sports News: "If the appeal is fielded within the deadline of the next 21 days we should have the appeal in the next two or three weeks.
"Then the CAS can proceed in an extradited manner depending on whether the party has agreed to extradite the procedure.
"But at the least we will probably issue a decision at the end of November or mid-December.
"We will have a panel of three arbitrators, so three judges. One will be selected by Chelsea the other by FC Lens and FIFA and the chairman will be CAS.
"It will be a final decision which would replace the FIFA decision if necessary. The CAS decision can be appealed only before the Swiss Supreme Court which is for the Swiss tribunal. It could be a final ruling before Christmas."