Q&A: The key questions surrounding the allegations against Justin Gatlin’s entourage

The anti-doping and athletics authorities are investigating newspaper allegations that members of controversial American sprinter Justin Gatlin’s entourage offered to supply performance-enhancing drugs.

The anti-doping and athletics authorities are investigating newspaper allegations that members of controversial American sprinter Justin Gatlin’s entourage offered to supply performance-enhancing drugs.

Gatlin, 35, who has served two doping bans in his career, is the world 100 metres champion, having beaten Usain Bolt to gold in London in August.