Rangers today took their battle against a 12-month transfer embargo to the law courts.
Administrators Duff and Phelps announced that legal proceedings had begun against the Scottish Football Association in the Court of Session in Edinburgh.
In a statement, joint-administrator Paul Clark said: "The club started proceedings at the Court of Session today in an attempt to challenge the imposition by an SFA judicial panel of a player signing embargo.
"The process will continue at the court on Tuesday and it is the club's position that the judicial panel did not have the powers to impose such a sanction.
"The club and the administrators are grateful for the support of the Rangers Fighting Fund on this matter."