A second half double to Nia Toliver has helped the United States stun Australia 19-24 in the second semi final. Australia extended their halftime lead to 12 points with a try to Maddison Levi but Toliver's double and another try to Alyssa Porter sees the USA head to the Final where they will meet New Zealand for the Cape Town title.

Canett converts from in front.

TOLIVER PUTS THE UNITED STATES IN FRONT! The USA opt for another scrum and this time they swing it left to Toliver who busts through Nathan before she powers away from Levi and Hinds to score under the posts.

The USA are awarded a penalty for holding on as Toliver gets over the ball at the breakdown. They opt for the scrum 37m out where Australia are penalised.

Canett pushes the conversion attempt across the face to the right.

Toliver comes up with a big steal at the breakdown as Canett pops in a pinpoint cross-field kick to the left. A collision on the ground sees the ball spill free to Porter, who picks up the loose ball and strolls over to score out wide.