New York: France's Kristina Mladenovic ousted Russian 13th seed Ekaterina Makarova 7-6 (7/2), 4-6, 6-1 early Monday morning to reach the US Open quarter-finals.
Already on her deepest Grand Slam run, the 22-year-old ranked 40th in the world booked a last-eight date Tuesday against Italy's Roberta Vinci.
Vinci won by walkover when Canada's Eugenie Bouchard withdrew from their fourth-round match due to a concussion suffered when she slipped and fell in the locker room Friday.
