Clermont and France centre Wesley Fofana has suffered a fresh injury blow as a cervical disc herniation will rule him out for three months.
His club confirmed the news on Friday as he will now miss the Six Nations.
Clermont said he had been diagnosed with a cervical disc herniation after complaining of “symptoms that alarmed the medical staff”.
The 29-year-old centre will undergo surgery next week and will also miss the Champions Cup pool run-in, as well as key Top 14 rounds.