2011 Hopman Cup of play. Eight teams competed for the title, with two round robin groups of four, from which the top team of each group progressed to the final. Spain were the 2010 champions but were not invited to defend their title. In the final the United States of America team of Bethanie Mattek-Sands and John Isner defeated Belgium's Justine Henin and Ruben Bemelmans 2–1. This was the USA's sixth Hopman Cup title. The 2011 Hyundai Hopman Cup is an invitational tennis tournament and is also known as the Official Mixed Teams Championships of the ITF. The 2011 cup has prize money
2011 Hopman Cup 2006, where they missed out on the final by losing two more sets when compared to America's record. Serbia qualified for the final after winning their opening two matches, 3–0. They needed just one rubber against Belgium to qualify. After Henin beat Ana Ivanovic, Novak Djokovic booked Serbia's second trip to the Hopman Cup final defeating Bemelmans in straight sets. However, due to Ivanovic having an abdominal strain injury, Belgium replaced Serbia in the final, sneaking in above Australia because of their 2–1 win in the last rubber of the group. The United States of America qualified, after Bethanie Mattek-Sands