Young American tennis player Madison Keys has upset her 18th-seeded compatriot Venus Williams to reach the semi-finals of the Australian Open in Melbourne.
Madison Keys has eyes only for the ball in Melbourne Photo: Photosport
The 19-year-old, who idolised the Williams sisters growing up, overcome a thigh injury to beat the veteran 6-3 4-6 6-4, and her reward is a semi-final against the other Williams sister, top seed Serena, who beat the 11th-seeded Slovak Dominika Cibulkova 6-2 6-2.
Five-time champion Serena Williams is looking ominous in Melbourne Photo: Photosport
Venus Williams' ranking should rise despite her quarter-final loss, as the American great continues her comeback at the age of 34 from the debilitating Sjögren's syndrome autoimmune disease.
Venus Williams' ranking should rise despite her quarter-final loss to Madison Keys Photo: Photosport
Williams' ranking is projected to lift from 18th to 11th next week.