The fourth day of the Australian Open saw significant upsets and thrilling comebacks. Laura Siegemund triumphed over Olympic champion Zheng Qinwen, while Aryna Sabalenka advanced after a comeback.
The longtime Novak Djokovic mentee and daughter of famed basketball star Predrag Danilovic is into her second major second week in the last 12 months, having broken through last spring at Roland ...