( CNN ) -- Oracle Team USA safely negotiated the choppy waters of sporting comebacks to pull off a memorable victory against New Zealand to defend the America 's Cup . The crew , backed by billionaire Larry Ellison , had looked sunk as they trailed 8-1 in the best-of-17-races elite sailing series . Down but not out , Team USA continued to develop their boat with the help of their land crew and made another key decision when Britain 's Olympic champion sailor Ben Ainslie replaced John Kostecki as key tactician at 4-1 down . But are technical updates and staff changes what true sporting comebacks are made of ? In the gallery above , CNN World Sport examines the ingredients of some of sport 's most tantalizing turnarounds -- from teamwork to the indomitable spirit of a single human soul . Let us know your favorite sporting comeback in the comments box below or join the conversation on World Sport 's Facebook page .
Team USA 's fight back from an 8 -1 deficit to defend sailing 's America 's Cup . The team modified its boat and juggling its one crew on the way to victory . Oracle Team USA win over New Zealand has been described as 11-man of sport 's greatest comebacks . But does it have all the ingredients of an all-time sporting comeback ?