A prominent anti-doping expert claimed at a British Parliamentary hearing here today the International Association of Athletics Federations (IAAF) has done less to tackle drugs problems than the International Cycling Union (UCI).

Michele Ferrari, the former physician of Lance Armstrong, has been called to give evidence to the Italian National Olympic Committee's (CONI) anti-doping prosecutor for allegedly aiding the illegal doping of a biathlete. 

Matej Toth, winner of the men’s 50 kilometres race walking world title here today in 3 hours 40min 32sec, said afterwards he will not compete at next year’s World Race Walking Cup in Cheboksary because of the doping scandal involving many Russian walkers coached by the now suspended Viktor Chegin.

I had an exciting, if rather terrifying experience, today when called in to do a television interview on CNN’s World Sport programme about the weekend’s 100 metres showdown between Usain Bolt and Justin Gatlin.

London 2012 Olympic 1500 metres champion Asli Cakir Alptekin of Turkey has been stripped of her gold medal and handed an eight-year doping ban, it has been announced today.

British supermarket giants Sainsbury’s have announced they have decided to end their sponsorship deal with British Athletics two years ahead of schedule owing to cost-cutting measures within the industry.

The Confederation of African Athletics (CAA) has become the latest organisation to hit out at the recent doping allegations to plague the sport, claiming “immense damage” has been caused to their athletes and that they are “disturbed” a lot of them are aimed at Kenyan athletes.

International Olympic Committee (IOC) member and Athens 2004 high jump champion Stefan Holm has called for more specific testing of suspicious athletes following the emergence of data allegedly showing a third of all medallists in endurance events at major championships over the last decade produced abnormal blood samples.

Venezuelan weightlifter Jesus Gonzalez Barrios has become the 17th athlete implicated in a doping scandal at the Pan American Games in Toronto and is set to be the first stripped of a gold medal after reportedly testing positive for an unnamed substance.

Shortly after Chris Froome had completed his second Tour de France triumph the Sky team boss Sir Dave Brailsford declared: “This is a clean rider. We are a clean team. You can have 100 per cent faith in what we do.”

Four more Toronto 2015 doping cases have been confirmed today by the Pan American Sports Organization (PASO), including Argentina's bronze medal winning wrestler Luz Vazquez, bringing the total number of athletes implicated to 12.

Working through the four confirmed positive drug tests at the Pan American Games in Toronto last week, the ugly side of the Tour de France was also rearing its head as the now traditional doping controversy begun to gather pace. 

Three baseball players and one weightlifter have been formally excluded from Toronto 2015, the Pan American Sports Organization (PASO) announced today, while two others are still implicated and are expected to be confirmed tomorrow.

Peruvian swimming silver medallist Mauricio Fiol is among five positive doping tests to emerge today at the Pan American Games, failing for stanozolol, the same anabolic steroid as Canadian sprinter Ben Johnson did at the Seoul 1988 Olympic Games.

If anyone is planning to knuckle down this weekend with the World Anti-Doping Agency (WADA)’s new 66-page report on anti-doping rule violations, then be aware of one thing: you’ll get much more out of it if you have a pocket calculator with a reliable percentage function to hand.