The guy that found the training ground sale - Stefan Borson (who used to advise Man City, so knows about what goes on in such clubs) - says the rules have changed for this current season to say that a club would be in breach if no genuine commercial negotiations took place for such transactions.
Aren't the profit and sustainability rules in place to make sure owners don't spend recklessly, leaving a club in a bad situation - surely selling off vital assets (such as a training ground) could leave some clubs in a bad situation.
As I understand it, from a 'big six' perspective, it's only Chelsea who are likely to breech FFP. Even Arsenal, who spent really big in the Summer, could have spent in January but chose not to.