Serena Williams declared on Sunday that she does not care how often she is drug tested - as long as other players are treated in the same way.
The seven-times champion was back at Wimbledon, where she begins another campaign on Monday, and reiterated her claim that she undergoes more checks for doping than anyone else on the circuit.
The 36 year-old American went on the front foot when asked about last week's story on Deadspin.com that an official from US Anti Doping left her house empty-handed after a visit on June 14.
Serena Williams says she does not care how often she is drug tested as long as other players are treated in the same way
She explained that he arrived twelve hours ahead of her allotted daily 'whereabouts' hour, and that it was among a welter of out-of-competition test being demanded of her.
'How is it I'm getting tested five times in June? It's only June, I've been tested five times,' said Williams, who has played three tournaments since coming back from giving birth.
'I'm okay with that, as long as everyone is being treated equally. That's all I care about. I despise having people in our sport that aren't being honest. I'm totally okay with testing and I encourage it. What I want to know is that everyone is getting tested, that we are really working to keep this sport clean.
'I feel like it's equality, that's all I've been preaching, it's all about equality. If that's testing everyone five times, let's do it. Let's be a part of it. It's just about being equal and not centring one person out.
'I never knew that I was tested so much more than everyone else. I didn't realise it was such a discrepancy with me as against the other players that they listed, at least with the American players, both male and female.
'For me it's a little frustrating. How can I have a missed test when it's nowhere near the time I should be there? It's really disappointing, shocking. I was just like, "that's just weird."
The 36 year-old American went on the front foot when asked about last week's story
She may have been unaware but she is in good company when it comes to being heavily