Sanchez an injury concern ahead of Inter's Europa League semi-final
The 31-year-old Chile attacker pulled up injured during his side's 2-1 quarter-final win over Bayer Leverkusen in Germany.
"Sanchez underwent medical tests this morning in Duisburg," Inter said in a statement on Wednesday. "The tests confirmed that he has suffered a strain in his right hamstring. His condition will continue to be reassessed over the next few days."
Inter are targeting their first title in the second-tier European tournament since 1998. The second semi-final pits Sanchez's former club Manchester United against Sevilla, with the final on August 21 in Cologne.
Sanchez has had an injury-plagued first season at Inter since moving first on loan from United. But he came back strong after the coronavirus lockdown in June, helping lift Antonio Conte's side to a runners-up finish behind Juventus, and made his transfer from the Premier League club permanent last week.