Leicester defender Wesley Fofana suffered a nasty looking leg injury during their pre-season friendly against Villarreal.
The France Under-21 centre-back was caught by a reckless challenge from Fer Nino and had to leave on a stretcher after several minutes of treatment.
Fofana, 20, was Leicester's young player of the season after a fantastic debut campaign in England.
Caglar Soyuncu, Harvey Barnes and Ayoze Perez scored in the 3-2 friendly win.
FA Cup winners Leicester play Manchester City in the Community Shield on Saturday at 17:15 BST.
