Is Serena Williams Singled Out During Drug Testing?

Serena Williams, who made it to the Wimbledon final a little more a week ago, again is questioning the randomness of drug testing in tennis.

She tweeted Tuesday night that its that time of the day to get randomly drug tested and only test Serena.

Williams spoke the day before Wimbledon began about how often she is drug tested in response to a Deadspin article – which reported she had been drug tested more than any other player this year.