ROGER FEDERER wants tennis chiefs to launch a total crackdown on drug cheats.
The Swiss legend was rocked after Maria Sharapova admitted she tested positive for a banned substance at the Australian Open in January.
Fed, 34, revealed he has been tested just ONCE in ten years in Dubai where he spends about two months a year.
Although he is regularly visited by doping officials in Europe, the 17-time Grand Slam champ said: “I definitely think tennis is doing a lot better than we have in the past.
“You could always do more testing. You could ask someone in fifty years and he’ll say we could still do more.
“You could test four times per day.
“What is the right amount and what’s not?
“Clearly I was very surprised about Sharapova but it also shows the famous players can get caught in the system. It seems to be working.
“I believe we should keep blood samples for ten years, so tennis players know you could get punished retrospectively.
“I’m a big believer in that. I’ve been in Dubai for ten years now and I’ve been tested once — that’s not OK for me.
“I get tested more in Switzerland because a tester lives in my village.
“Maybe I am naive as I believe athletes and trust what they’re doing.
“I don’t think there’s a major problem. I quadruple check anything I take.”