America's Cup: Blunder costs USA

Oracle Team USA gifted Emirates Team New Zealand a 4-1 advantage after a mistake at the second mark during race five.

The Americans had looked powerful, leading the Kiwis in San Francisco until the hull hit the water, almost bringing the boat to a stop - handing Team New Zealand a huge winning margin.

New Zealand's grip on the event was further strengthened when the Americans used their postponement card and defaulted on race six in a bid to regroup.

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