Americans shined during the second day of the U.S. Open from the Billie Jean King National Tennis Center in Flushing Meadow, N.Y., but it was the shocking upset of No. 8 Caroline Wozniacki by unranked Irina-Camelia Begu, 6-2, 6-2 that drew the most attention on the day.
The former world No. 1 was downed easily in her attempt to claim her first career major title. Wozniacki's loss does open her quarter of the women's draw at Flushing Meadow up for No. 4 Serena Williams, who beat fellow American Coco Vandeweghe, 6-1, 6-1 on Tuesday.
In men's draw action, many of the favorites, including Novak Djokovic and Jo-Wilfried Tsonga, were in action on Tuesday, and few had much trouble advancing to the second round. Djokovic quickly dominated Paolo Lorenzi, 6-1, 6-0, 6-1, while Tsonga grabbed a victory over Karol Beck 6-3, 6-1, 7-6 (7-2).
American No. 20 Andy Roddick also advanced, besting qualifier Rhyne Williams, 6-3, 6-4, 6-4.
For a complete list of results, be sure to check out the USOpen.org.