The Portuguese club's president, Bruno de Carvalho, insists the club will not be pressured into selling the Argentina international this summer
Manchester United target Marcos Rojo has been disciplined by Sporting for his alleged lack of professionalism and will not feature in the club’s season opener against Academica on Saturday.
It had been reported in Portugal that the 24-year-old Argentina left-back refused to train on Tuesday amid interest from the Red Devils, with Louis van Gaal’s side submitting a €24 million offer.
Southampton are also keen to secure a deal but Rojo, who can operate at centre-back as well as on the left side of defence, is keen to move to Old Trafford.
Sporting president Bruno de Carvalho has revealed that Islam Slimani has also been reprimanded and insists the two players cannot bully the club into selling them this summer.
“They are subject to disciplinary action,” De Carvalho told Sporting TV.
“Both players took decisions that have provoked strong, internal disciplinary action. A general note: Any player who does not follow the rules of the club, these two or any others, they can do what they want, but it only complicates the issue.
“Don’t use the press, be professionals. These players are subject to strong disciplinary measures.
“They can’t play on Saturday, if they want they can watch the game at home.
"It could delay things a lot, it could drag things out a lot, but on Saturday it will not be resolved.”
When asked if the duo’s actions could lead to their exits, De Carvalho replied: “It could end with them seeing out their three-year contracts.”