In tennis, it’s easier to serve than to return — you dictate the first move, you control the opening stroke, you set the tone for the point, which, in turn, can set the tone for the game, the set and ultimately the match. And when Maria Sharapova took it upon herself Monday to announce she had failed a drug test at the Australian Open in January, she was basically serving and setting the tone for a match she’d probably rather not play.
