Fearless Ukrainian qualifier Dayana Yastremska surged into a maiden Grand Slam quarter-final Monday, stunning two-time champion Victoria Azarenka at the Australian Open. Dayana Yastremska of Ukraine reacts after defeating Victoria Azarenka of Belarus in their fourth round match at the Australian Open tennis championships at Melbourne Park Driven by a booming serve and aggressive groundstrokes, the athletic 23-year-old battled past the Belarusian 7-6 (8/6), 6-4 on Rod Laver Arena. Her reward is a clash with unseeded Czech Linda Noskova, who progressed to the last eight when Ukraine's Elina Svitolina retired with a bad back while trailing 3-0 in the first set. "I need to take a little bit of time to breathe because my heart I feel is going to jump out of my body," she said. "I always felt like I was running behind the train, but I think because I am a little bit of a fighter that's why I won this match." Yastremska's previous best at the Slams was a f...
