After Wickmayer suspension, is it safe to say tennis is still 'clean'?

What's that old saying? Once is a mistake, twice is a coincidence, three times is a trend? If that's the case, then Yanina Wickmayer's one-year suspesnsion for thrice failing to report her whereabouts to drug testing officials is a fair and legitimate penalty.From the Associated Press:Wickmayer said last month she has had trouble with her password in the computerized system overseen by the World Anti-Doping Agency. She also said registered mail at her home could not be signed off on because she was travelling to WTA tournaments. Yes, Yanina, you're the only player who travels to tournaments and can't sign for registered mail. And that password excuse sounds like something I'd tell an ex-girlfriend whose emails I haevn't returned. Maybe she did, maybe she didn't. If it's the latter, then failing to report her whereabouts to officials three times is the height of stupidity. If she did, was she using illicit substances for recreation or to enhance p...