ATP players defended their sport and the tour’s updating of anti-doping information on Wednesday in the wake of drugs cases involving 15th-ranked Croatia’s Marin Cilic and Serbian Viktor Troicki.
“Tennis does a good job of testing from my experience,” said 20th-ranked John Isner. “Tennis as a whole, I do feel, our sport is clean.”
The topic has drawn attention after Troicki was banned for 18 months after allegedly refusing to submit a blood sample to a tester and Cilic reportedly tested positive at an April event in Munich.
Troicki, ranked 53rd, said he was assured he could skip the blood test without punishment.
Uncertainty about how well informed players are regarding banned substances and the testing requirements then became the issue. “Our doping system is extremely tough,” said American Mardy Fish.
“We do get updates. We get a lot of information. There are things constantly coming through e-mails about player regulations, regulated substances."