Down 2-0 in the first set, the Ukrainian athlete felt discomfort in her back and asked for a medical timeout. Svitolina returned, but her serve was noticeably slower and you could see her movement was diminished. After being broken a second time, Svitolina tearfully withdrew. Read also: Ukrainian tennis star Svitolina advances in Australian Open with swift victory over Bulgarian player The Olympic bronze medalist did not serve any aces and committed ten unforced errors in the match, which lasted only 20 minutes. It was an unfortunate outcome for the Ukrainian, who was favored to win after her …