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.
For more on the 2012 U.S. Open, please be sure to check out our Tennis hub and SBNation.com for all the latest news and updates.