Australia's SailGP boat suffers wing failure at San Francisco Sail Grand Prix

The Australia SailGP Team attended to by their support boat after the main wing broke in the water

The Australia SailGP team helmed by Tom Slingsby suffered a stunning wing failure in San Francisco. (AP: SailGP/Felix Diemer)

In short:

The crew of Australia's SailGP boat are unharmed despite their their sail wing sensationally collapsing in San Francisco.

Australia suffered the dramatic wing collapse as they approached the line to begin seventh fleet race of the event.

Driver Tom Slingsby said the incident came as a "shock".