as Miami champion No. 1-ranked Ash Barty won her second successive Miami Open championship Saturday by beating No. 8-seeded Bianca Andreescu, who was injured when she fell and retired trailing in the second set. Andreescu, crying and shaking her head, conceded while behind 6-3, 4-0. She stumbled and went sprawling two games earlier when she turned her foot awkwardly while hitting a forehand. During the ensuing changeover, a trainer taped her foot, but she played only five more points before retiring. âI really do feel for Bianca,â Barty said. âShe has had such a rough trot with injuries in the past.â