Maria Sharapova turns 36: a look back (24 images)

Maria Sharapova serves to Jelena Jankovic at the U.S. Open in Flushing, N.Y., in 2004. Photo by John Angelillo/UPI .

Sharapova falls to the ground after match point during her straight-sets finals victory over Henin-Hardenne at the U.S. Open in 2006. She was the highest-paid female athlete in the world for more than a decade. Photo by John Angelillo/UPI

Sharapova waves to fans after defeating Roberta Vinci at the U.S. Open in 2007. Photo by John Angelillo/UPI

Sharapova loses to Agnieszka Radwanska of Poland during the U.S. Open in 2007. Photo by Laura Cavanaugh/UPI