Maria Sharapova, of Russia, serves the ball to Mirjana Lucic-Baroni, of Croatia, during the Italian Open tennis tournament, in Rome, Tuesday, May 16, 2017. (AP Photo/Andrew Medichini)

Maria Sharapova, of Russia, serves the ball to Mirjana Lucic-Baroni, of Croatia, during the Italian Open tennis tournament, in Rome, Tuesday, May 16, 2017. (AP Photo/Andrew Medichini)