Sporting Lisbon have written to FIFA to lodge a complaint about both Wolves and goalkeeper Rui Patricio.
Patricio joined Wolves last month as one of a number of players who campaigned to have their contracts at Sporting cancelled.
The Portuguese club’s training ground was breached last month by around 50 fans, who proceeded to physically assault a number of players in a calculated attack.
President Bruno De Carvalho has also made a number of controversial comments about the squad, with Sporting failing to qualify for next season’s Champions League.
Carvalho has since been voted out of the position, and Sporting are now seeking compensation for those who have left.
“Patricio left the club without previous agreement,” Sporting said, insisting the 30-year-old “broke his contract”.
They have lodged an official complaint with FIFA, asking for £48m in compensation.
They may do similar for any of the other eight departures who have since found new employment.
Sporting also want Patricio banned from playing for six months, and Wolves banned from making any signings in the next two transfer windows.