Croatia defender Daniel Pranjic will be forced to undergo treatment on his ankle just days before the World Cup gets underway.
The 32-year-old picked up the foot injury in his country's recent friendly victory against Australia to become a doubt for the tournament.
"Danijel Pranjic has a left ankle sprain and will undergo treatment during the upcoming days," the Croatian Football Federation revealed in a statement.
Croatia begin their campaign on Thursday night when they take on hosts Brazil in the opening game.