America's Cup: Sir Ben Ainslie says British team must hurry

America's Cup winner Sir Ben Ainslie says a British team have "weeks, not months" to decide whether to compete in the next event.

The Briton, a four-time Olympic gold medallist, helped Oracle Team USA recover from 8-1 down to beat Team New Zealand 9-8 last week. Victory means they can choose the format, time and venue for the next Cup.

The first America's Cup was first held in Britain off the Isle of Wight but no British boat has triumphed in the competition's 162-year history.