Capello wants to take the Portsmouth goalkeeper to South Africa next summer but will not take a risk on the 39-year-old if he is still struggling with the knee problem which has troubled him for much of this season.
James told the Daily Mail: "By the time England play again in March my left knee will be fine,' said James. 'I see it as a chance to win my 50th cap, something I'd love to do at Wembley, and if I'm selected I will be fully fit.
"I realised I was going to be out for a while after the shoulder surgery in the summer so I decided to get it cleaned up at the same time. It was just a case of getting a bit of cartilage trimmed. Pretty minor stuff.
"The shoulder recovered much quicker than the doctors expected and the knee seemed to feel fine, too. But I aggravated it a bit in a goal-kicking session and I have had to be a bit careful with it since.
"I can see why the manager might be a bit worried but it's not strictly true that I can't train for two days after every game. I just have a programme in place for now that is designed to allow the knee time to make a full recovery and it means I don't do any goalkeeping training on a Monday. I just go in the gym and do conditioning work before returning to goalkeeping work the next day.
"But if truth be told I've not done much goalkeeping work on a Monday since I joined Portsmouth. When I first arrived I lived in Devon and Harry Redknapp would allow me to do stuff on my own at home on a Monday."