Alexander Zverev made it through to the last eight of the Toronto Masters after Francisco Cerundolo retired due to injury at 6-4, 1-0 on Saturday. The world number three had not won any of his three previous matches against Cerundolo,

Top-seeded Alexander Zverev led Francisco Cerundolo 6-4, 1-0 when the 14th-seeded Argentine retired because of an abdominal injury Saturday night in the National Bank Open.

El alemán Alexander Zverev, primera cabeza de serie, lideraba 6-4, 1-0 cuando el argentino Francisco Cerúndolo (14), se retiró debido a una lesión