i love the Olympics and also athletics. Toe injuries for hurdlers are bad news and I can tell you that Rawlinson is one tough woman who has been crucified by the 'tall poppy' syndrome in that she is a winner unlike the Tamsyn Lewis pretty girls in the sport who are more keen to get shots on covers of magazines than do the hard stuff to win races. Deakes and Rawlinson are World Champions, have been tested in and out of training for years - so the conspiracy theory is probably without substance. (We are not the US who cover up tests!)
Re the braces - Fro - some steroids are reputed to affect jaw growth and therefore mess up one's teeth, requiring braces beyond the 'normal' teenage years.