Genoa announced Denmark international Lukas Lerager will be out for a month after undergoing sports hernia surgery.
The 25-year-old midfielder, who arrived in the January transfer window from Girondins de Bordeaux, had the operation in London today.
He is expected to be out of action for around 30 days, so should be ready for pre-season training.
Genoa striker Gianluca Lapadula also went under the knife to correct a deviated septum from a previous injury to his nose.
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