Sandro will take no further part in the Copa America in Argentina after suffering a knee injury on international duty with Brazil.
The 22-year-old was sent for a scan after complaining of pains in both his calves and his left knee in training and results showed that the Tottenham midfielder had ruptured the meniscus in his knee, an injury which requires surgery and usually takes around a month to heal.
That makes him a serious doubt for Tottenham’s Premier League opener against David Moyes’ Everton on August 13.
“It is a problem that I have had been feeling for some time,” Sandro was quoted as saying on the UOL Esporte website.
“It has been troubling me more recently because it has stopped me practising.
“The examination found that I have to have surgery. Unfortunately for me the injury happened now, at an important moment of my career. But I will have the surgery and try to recover soon.”
Brazil team doctor Rodrigo Lasmar said: “There is swelling muscle in the calves and a rupture of the meniscus externally in the left knee.”
-With setanta.com input