Wolves have reported Premier League rivals Bolton Wanderers over an alleged illegal approach made to former academy player Mark Connolly.
Connolly, 17, joined the Trotters on transfer deadline day in August for a reported fee of £1million.
However, Wolves allege that their former academy chief Chris Evans - who now works for Bolton - broke Premier League rules with "unapproved communication".
"We have lodged an official letter of complaint, supported by considerable amounts of documentary evidence, with both the Premier League and the FA," chief executive Jez Moxey told the club's official website.
"This complaint relates to Bolton Wanderers and their assistant manager Chris Evans, a former Wolves employee. We allege that there has been a breach of the Premier League and FA rules in place to protect a club's academy programme, maintain player contract stability and prevent illegal approaches of players.
"It is not an issue about money or the level of compensation we received for a player we did not want to leave; it is about the protection of the club's academy programme and its development of young players, something which is of paramount importance to us at Wolves.
"We cannot sit on our hands and allow the events surrounding Mark Connolly's departure to pass unchallenged or unnoticed."