I think that the major concentration of PED issues is in sports that are focused on individual performances, eg athletics, cycling, baseball. The effects of PEDs (unless it&#x27;s a team wide programme) have much less impact in team sports. It&#x27;s also much, much harder to keep secret. People and players with axes to grind and all that.<p>That&#x27;s not to say there isn&#x27;t drug taking going on; but to imply that&#x27;s the reason for Leicester&#x27;s success this season is indeed controversial, and as far as I can see, without merit.<p>Chelsea have had a startling decline from champions last year to mid table fodder, this year. Does that mean they&#x27;ve stopped doping?