Chelsea captain John Terry has been ruled out for up to two months after aggravating his knee injury, Press Association Sport understands.
Terry is due to undergo what is understood to be a small procedure on the right knee that has been troubling him ever since he collided with a post in last month's FA Cup clash with Portsmouth.
Blues boss Andre Villas-Boas had been hoping the 31-year-old would recover in time for Tuesday night's Champions League clash at Napoli. But, despite taking part in training on Monday the England centre-back woke up in considerable pain at Chelsea's team hotel on Tuesday morning and will now miss next week's international friendly against Holland.
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