Maria Sharapova is a tennis player.
The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Winning the four majors in consecutive tournaments but not in the same year is known as a Non-Calendar Year Grand Slam , while winning all four majors at any point during the course of a career is known as a Career Grand Slam . Maria Yuryevna Sharapova ( Мари́я Ю́рьевна Шара́пова ; born April 19 , 1987 ) is a Russian professional tennis player . She is one of ten women , and the only Russian , to hold the career Grand Slam .