Leicester City midfielder Dennis Praet will be out for around three months after picking up a hamstring injury against Stoke in the FA Cup.
The 26-year-old pulled up in the closing stages of Saturday victory and could be ruled out until mid-April.
Leicester boss Brendan Rodgers described the injury as "a huge blow".
"It was not quite his hamstring but a tendon in the hamstring," he added. "It was an awkward one for him, the ball just popped up and he over-stretched."