MELBOURNE, AUSTRALIA (AP) _ Results Wednesday from Australian Open at Melbourne Park (seedings in parentheses): Ben Shelton (21), United States, def. Lorenzo Sonego, Italy, 6-4, 7-5, 4-6, 7-6 (4).
Follow the quarter-finals action live as Madison Keys does battle with Elina Svitolina, Iga Swiatek faces Emma Navarro and Ben Shelton plays Lorenzo Sonego.
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