Is Tennis Doing Enough on Doping?

Is tennis doing enough on doping?
Filed under: martina hingis cocaine addiction
It's impossible to know how prevalent performance enhancing drug use is in tennis. Smatterings of cases — 37 in the past 10 years, including wheelchair athletes …. 1 Martina Hingis, former top-10 player Richard Gasquet and 2005 French Open finalist … Read more on USA TODAY