Angelique Kerber gets a walkover into the semi-finals of the BNP Paribas Open after Samantha Stosur is forced to pull out of their match through injury.
Angelique Kerber has reached the semi-finals of the BNP Paribas Open after Samantha Stosur was forced to pull out of their match through injury.
Former US Open champion Stosur has withdrawn from the tournament with a calf problem.