Sporting Lisbon defender Merih Demiral has attracted widespread interest from across Europe this summer.
Turkish-Football recently reported Manchester United keeping close tabs on the 1.92m tall centre-back.
Additionally, Galatasaray, Fenerbahce and Besiktas are all keen on the defender but he has made it clear he has no intentions of returning to Turkey.
Sporting are currently in turmoil with several first-team players linked with a summer exit after masked hooligans attacked first-team players at the training ground.
Sporting are intent on keeping their rising star on at the club next season and have promoted him to the first-team to show how serious they are about his future.
The 20-year-old Turkey youth international has a €45m release clause and another four-years remaining on his contract.
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Sporting Lisbon first-team
Goalkeepers: Emilano Viviano, Romain Salin, Luís Maximiano;
Defenders: Marcelo, Jonathan Silva, Jefferson, André Pinto, Ristovski, Domingos Duarte, Lumor, Piccini, Mathieu, Merih Demiral, Bruno Gaspar;
Midfielders: Matheus Pereira, Bruno César, Raphinha, Francisco Geraldes, Petrovic, Misic, Wendel, Gauld, Palhinha, Matheus Oliveira, Jovane Cabral, Carlos Mané;
Strikers: Montero, Luc Castaignos e Seydou Doumbia.