Boulter through to third round in Miami after teenage opponent retires

British No 1 Katie Boulter made it through to the third round of the Miami Open after her teenage opponent Brenda Fruhvirtova retired with illness.

Boulter through to third round in Miami after teenage opponent retires
British No 1 Katie Boulter made it through to the third round of the Miami Open after her teenage opponent Brenda Fruhvirtova retired with illness.