Chambers ban

Sprinter Dwain Chambers is continuing to protest his innocence after being found guilty of failing a drugs test and banned from the sport for two years.

The European 100 metres champion produced a positive result for the banned steroid THG (tetrahydrogestrinone) in an out of competition test in Saarbrucken, Germany, last August.

Under the strict liability rules of the International Association of Athletics Federations (IAAF), the presence of a banned substance is enough for an athlete to be found guilty whether or not they meant to take it.