Bristol Rovers have lodged a letter of complaint to the Football League and the Football Association over their relegation to the Conference.
Rovers claim that Wycombe Wanderers, who avoided relegation on the final day of last season, have breached FA rules on third party ownership.
In a statement on their website, the club said: “It’s current Chairman, in giving evidence at a recent FA Disciplinary Hearing, appears to have admitted a serious breach in respect of the player, Matt Phillips (and possibly other players).
“The result of this led to Wycombe wrongfully obtaining a competitive advantage over Bristol Rovers.
“Without this, Wycombe rather than Bristol Rovers could have been relegated.
“Bristol Rovers were relegated merely on goal difference, and as the breach, if proven, would have almost certainly led to a points deduction, Bristol Rovers have instructed specialist sports lawyers together with Nick De Marco, a leading sports barrister, to draft and send a complaint to both The Football League and The Football Association.”