Leicester are sweating on the fitness of Kasper Schmeichel ahead of their trip to Manchester United on Saturday.
Foxes manager Claudio Ranieri has revealed the Danish goalkeeper has picked up a new muscle injury after overcoming a recent concussion.
The 29-year-old's possible absence could give Ron-Robert Zieler the chance to start a third straight game.
Ranieri did not expand on Schmeichel's injury but the Champions' No 1 underwent a hernia operation earlier this month.