Isa Guha presents coverage of day nine of the Grand Slam tournament from the All England Club, featuring the men's and ladies' singles quarter-finals. Taylor Fritz was the first man to secure a place in the semi-finals last year, claiming a 6-3, 6-4, 1-6, 7-6 victory over Karen Khachanov, and the current world number eight will hope to still be in contention for a maiden Grand Slam title this time around