Interesting forum thread linked to by @afcamden.

http://goallegacy.forumotion.com/t24...4-months-talks

(From Diaby's trainer during rehabilitation)

Basically, he said the following:
- Diaby had massive muscular imbalance issues and the rehab at Arsenal was not done well (implied on second part).
- Diaby had one leg that was a footballer's and another leg that was fit for a 10 year old (exact quote).
- The last 3 months were spent to strengthen his injured areas and regain proper balance.
- Also spent a lot of time working on getting the body to release the scar tissue from his injuries, which created irritation, and to reestablish proper flexibility in those areas.

This trainer was the one who trained Diaby during his only injury-free season (2009-2010). After that, Arsenal wanted Diaby to use the club's training and recovery methods (because they're cheap). Only in the last 4 months did Diaby request and receive authorization to return to this trainer.