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
Hopman Cup are for men or women only, the Hopman Cup is a mixed competition in which male and female players are on combined teams and represent their countries. Players are invited to attend and national coaches are not involved in selecting teams. Eight nations are selected annually to compete in the Hopman Cup. The "last" team may be decided by play-offs between several nations before competition begins. For the 2007 Hopman Cup however, this did not occur, due to the Asian Qualifying Tournament creating the eighth team. The official tournament website also has no qualifier listed in its schedule. Each team