Defending champion Maria Sharapova and Li Na won Saturday and advanced to the finals at the Italian Open. The second-seeded Sharapova clipped No. 12 seed Angelique Kerber Saturday 6-3, 6-4 to reach her fourth finals of the year and move closer to a second consecutive crown in the French Open tuneup. Li made it to the finals by default after Serene Williams withdrew from Saturday\'s semifinals match with a lower back injury. Williams said later she would be ready to play in the French Open in eight days.