Chelsea could be without their captain John Terry for two months because of a knee injury, according to reports.

Terry had travelled with the Chelsea squad for their Champions League tie against Napoli this evening.

He took part in a training session last night and was given an outside chance of featuring in Naples by coach Andre Villas-Boas.

However, the 31-year-old is believed to have suffered a setback overnight and has been ruled out of tonight's match.

Initial reports have also suggested that Terry may require an operation to correct the problem, ruling him out for around eight weeks.