Tottenham Hotspur's Brazil midfielder Sandro will be sidelined for at least three months after having surgery on his left knee on Friday, the Premier League club said in a statement.
The 22-year-old was forced to withdraw from his country's Copa America campaign on Tuesday with scans confirming he had torn his lateral meniscus and suffered a calf strain.
"The (knee) specialist has advised a three-month rehabilitation period before a return to full training," Spurs said on their website (www.tottenhamhotspur.com).
Sandro began his career at Tottenham almost a year ago after joining the club from Internacional. Spurs start their Premier League campaign at home to Everton on August 13.