Justin Gatlin dragged into a fresh doping allegations

The anti-doping and athletics authorities are investigating allegations that members of world 100 metres champion Justin Gatlin’s entourage offered to supply performance-enhancing drugs.

The Daily Telegraph newspaper alleged that, in an undercover investigation, Gatlin’s coach Dennis Mitchell and an athletics agent, Robert Wagner, had offered to supply banned drugs for an actor training for a film.

Undercover reporters visited Gatlin’s Florida training camp and they claim the pair offered to supply and administer testosterone and human growth hormone.

They were also secretly recorded claiming that the use of banned drugs in athletics was still widespread.

The United States Anti-Doping Agency and the Athletics Integrity Unit, the new body set up by athletics’ world governing body the IAAF to oversee all anti-doping matters in the sport, are investigating the allegations.

IAAF president Lord Coe, described the allegations as “extremely serious”.

Gatlin, who has twice served doping bans, won 100m gold at the World Championships in London this summer, triumphing over Usain Bolt. The 35-year-old’s victory was greeted by boos from the crowd.

According to the Telegraph, Gatlin’s legal representatives have announced he has sacked Mitchell as his coach