This BBC podcast http://www.bbc.co.uk/podcasts/series/tms
focusses on Marcus Trescothick and his journey with depression with contributions from Matthew Hoggard and rugby great John Kirwan.
Well worth listening to as it shows how the black dog can bite anyone and that this is a medical issue, not something you can just snap out of.
The show is long ( almost 2 hours) but very well done.