Sporting announced the agreement with Atlético de Madrid for Gelson Martins. Sporting also announced the contract of Vietto.
Sporting issued a statement on Tuesday announcing that it has reached a "global agreement" with Atletico Madrid over Gelson Martins and Luciano Vietto.
The Spanish club is going to pay 22.5 million euros for the Portuguese international. Vietto, Argentinian forward, was officially announced as a reinforcement for the Alvalade club for 7.5 million euros, with Atletico being entitled to 50 percent of the player's future rights.
Read more in O Jogo