Four-time Olympic champion Sir Ben Ainslie has paid tribute to Andrew Simpson.
Simpson, who became an Olympic Champion in 2008, died after being trapped under his AC72 catamaran when it nosedived, capsized and broke into pieces. He had been training with the Artemis Racing team in San Francisco Bay.
Simpson recently turned his attention to the America's Cup - a trophy he admitted was his biggest goal - and had been working as a strategist for Swedish team Artemis Racing.
Ainslie, who is helmsman with defending champions Oracle Team USA, released a statement on his website.
This is such a tragedy. Andrew was such a wonderful husband, father, friend and one of the nicest people you would ever meet. The only solace I can find is that he died doing something which he loved.
I have such fond memories of growing up sailing together as kids and then as adults. I will miss him so much.
My thoughts and prayers are with Leah, their two boys and their family.
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