Injury forces top-seeded Kerber to quit Swedish Open

BASTAD, Sweden — Top-seeded Angelique Kerber of Germany withdrew from the Swedish Open on Thursday because of an elbow injury, while fourth-seeded Annika Beck advanced to the quarterfinals. Kerber, who lost to Serena Williams in the Wimbledon final earlier this month, injured her elbow during Wednesday’s second-round victory over local wild card Carolina Lister. The