Maria Sharapova is in the Women's Tennis Association.
Maria Yuryevna Sharapova ( Мари́я Ю́рьевна Шара́пова ; born April 19 , 1987 ) is a Russian professional tennis player . She returned to the WTA tour on April 26 , 2017 at the Porsche Tennis Grand Prix . The Women 's Tennis Association ( WTA ) , founded in 1973 by Billie Jean King , is the principal organizing body of women 's professional tennis .