Jo-Wilfried Tsonga (Thanks, Asterix): "...I regret there is not many blood tests...When I hear some people's statements after the end of their career... I don't want to be a part of the debate. My impression is that we'll never know."
This now makes 5 of the ATP's top ten players asking for an increase in blood testing: Djokovic, Federer, Murray, Tsonga, and Gasquet. What does the ITF have to say?