Roger Federer talks about Jannik Sinner’s controversial doping situation
Roger Federer has spoken about the situation that the world’s number one tennis player, Jannik Sinner, is going through. The Italian, at the beginning of the year, tested positive twice for clostebol. In March, Sinner tested positive for a synthetic anabolic steroid derived from the male hormone testosterone, called clostebol. The Italian, at the ATP … Read more