Sporting CP report Atletico Madrid to FIFA over Gelson Martins transfer Transfer Market - Atletico Madrid Unanimous decision from the board

The training ground attack by Sporting CP ultras saw several players rescind their contracts and move to other clubs, such as Gelson Martins, who has joined Atletico Madrid.

Unhappy at the player's decision and the way this cost the Portuguese club a significant transfer fee, their board have reported Los Rojiblancos to FIFA.

"As a result of the unacceptable behaviour of Atletico Madrid with regards to the Gelson Martins situation, the Sporting CP board - which is simply defending the best interests of this club and not others - decided unanimously to present a complaint to FIFA which will ask for compensation on part of the player and the club and which will ask for sporting sanctions for both," a statement on the club website said.

The Lisbon-based club took similar action after Rui Patricio left them for Premier League side Wolves.