Backed by a £174 million sponsorship deal from billionaire Sir Jim Ratcliffe, Olympic hero Sir Ben Ainslie was set to conquer the waves in the high-tech yacht Britannia.

Sir Ben Ainslie's feud with Sir Jim Ratcliffe is being played out in court with the Olympian making a series of major accusations against Ineos and their chief

The claim is set out in the defence filing by Ainslie's Athena Racing against a High Court action pursued by Ratcliffe's INEOS Racing.