2012 will 'increase doping temptation'

Britain’s anti-doping chief Andy Parkinson is “massively concerned” that the rewards on offer at the London 2012 Olympics will tempt home athletes to take performance-enhancing drugs.

Parkinson, the acting head of UK Sport’s anti-doping programme, has warned the increasing availability of various banned substances means it is “only a matter of time before someone crosses the line”.