"I should be off the crutches by the start of next week, then I have to start all over again in terms of getting myself back to match fitness.
"I could be out for about three months, but we've decided not to rush things. I have to make sure this is the end of the problems.
"Obviously, like every other player, I want to be involved at the start of the season. I thought that was going to be the case, but I'll just have to be patient."