I'd have thought it being an ankle injury would be enough to be as cautious as possible. There's only one way you can 'stress' it and that's by doing too much. It could be that he took it upon himself to do as much training as possible, footballers have a tendency to be dim.
I think there probably is something inherently wrong with how we do things but it's also compounded with the league we play in. We haven't been able to play a first XI since 2004, it's just stupid.