Leicester City midfielder Nampalys Mendy will be out of action for around five weeks after undergoing an surgery on his ankle.
The 24-year-old joined the Foxes from French club Nice in July but was substituted on his Premier League debut against Arsenal in August after landing awkwardly to injure his ankle.
'Mendy was unlucky. In the last training session he had a little fracture of the bone. I think today (Monday) he is in surgery just to clean this little fragment of bone out,' Ranieri said.
'It depends how long, it could be four weeks or five weeks.