Agnieszka Radwanska has clinched the Miami Masters title with victory over Maria Sharapova.
The 23-year-old Pole triumphed 7-5 6-4 to win her second title of 2012 and ninth overall WTA championship.
Defeat for Sharapova means that she has now lost four times in the final at Miami.
The world number two has finished as runner-up for the third time in 2012, following disappointment at the Australian Open and Indian Wells.
