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It was a very dismal day for Team USA with US Open champion Sloane Stephens, Venus Williams, Coco Vandeweghe, John Isner and Jack Sock losing their matches. However Ryan Harrison defeated Dudi Sela in five sets and Nicole Gibbs routed Viktoriya Tomova 6-1, 6-1 to salvage the day.
We got a couple of more upsets as Kaia Kanepi defeated Dominika Cibulkova 6-2, 6-2 and Kyle Edmund defeated Kevin Anderson 6-7(4), 6-3, 3-6, 6-3, 6-4.
Things were more orderly in the other matches as Rafa, Caroline, Grigor Dimitrov, Jelena Ostapenko, Elina Svitolina, Nick Kyrgios and Jo-Wilfried won their matches in straight sets, while Marin Cilic won his match in four sets.
So that's the story from Day 1 at the Australian Open.
Coming up later
tonight in Day 2; Nole, Maria, Stan, Karolina Pliskova, the Zverev brothers, Simona Halep, Johanna Konta, Angelique Kerber, Milos Raonic, Genie, Petra Kvitova, Dominic Thiem, Lucie Safarova, David Goffin, Madison Keys, Aga Radwanska, Richie and Sam Querrey will headline the afternoon session, while Fed, Garbine Muguruza, Delpo and home country favorite Ashleigh Barty will headline the evening session.