Agnieszka wins Sony Ericsson Open Agnieszka Radwanska of Poland holds the trophy aloft after her victory over Maria Sharapova of Russia in...

Agnieszka wins Sony Ericsson Open

Agnieszka Radwanska of Poland holds the trophy aloft after her victory over Maria Sharapova of Russia in the women's final of the Sony Ericsson Open tennis tournament in Key Biscayne, Florida, March 31, 2012. (Photo/Reuters)

Maria Sharapova of Russia, returns the ball to Agnieszka Radwanska of Poland, during the women's singles final of the Sony Ericsson tennis tournament, Saturday, March 31, 2012, in Key Biscayne, Fla.(Photo/AP)

Agnieszka Radwanska of Poland hits a return to Maria Sharapova of Russia during the women's final at the Sony Ericsson Open tennis tournament in Key Biscayne, Florida, March 31, 2012.(Photo/Reuters)

Agnieszka Radwanska of Poland blows a kiss after defeating Maria Sharapova of Russia in their women's singles match at the Sony Ericsson Open tennis tournament in Key Biscayne, Florida March 31, 2012.(Photo/Reuters)

Maria Sharapova lost her serve in the final game of each set Saturday and again fell short in a bid for her first Sony Ericsson Open title, losing to Agnieszka Radwanska 7-5, 6-4.