Morris, currently on tour with England A in South Africa, had treatment on his right knee in Port Elizabeth on Monday to enable him to complete the tour.
The treatment, which involved the draining of fluid and a steroid injection, should also ensure his availability should he be called up to join the senior squad in the West Indies next year.
However, Wayne Morton, the team physiotherapist, said an operation could be required in the spring. 'It is not curative, more a case of relieving the symptoms and easing the injury. He has suffered swelling and pain. The problem is a matter of advanced wear and tear on the knee but it might just require 'cleaning out'.'
Morris, who has twice had cartilage operations on the knee, the first time owing to a rugby injury, has had problems with it since the latter half of last season but only in recent weeks has it been severe enough to affect his mobility, forcing him to field at slip in England's last match.
The 30-year-old, who is entering his benefit season, said: 'I am sure having this injection was the right thing to do. I will not know for a few weeks how well this has gone but it already feels much better. An operation early next year is a possibility but no more than that at this stage.'
Morris, who has been an excellent captain, may play in Thursday's one-day match against a Western Province Invitation side in the Langa township, as might Martin Bicknell, who has been struggling with a rib muscle injury.Reuse content