Sir Jim Ratcliffe (left) and Ben Ainslie teamed up in 2018 in a bid to win a first America's Cup for Great Britain ... first win for Great Britain in the yacht race since it started in 1851.

The breakup comes after Ainslie steered Britannia to a British yacht's first America’s Cup final in 60 years in Barcelona last year. It lost to Emirates Team New Zealand 7-2 in the final.

Four-time Olympic champion Ben Ainslie has split from Sir Jim Ratcliffe's Ineos Britannia America's Cup sailing ... bid to a deliver a first win for Great Britain in the yacht race since it ...